I think the key goes back to listening to what the fish are telling you. I will give you an example of my typical day at Long Lake, aka Lake Spokane. It is on the Spokane River upstream of the Spokane arm on Roosevelt. Let us assume it is in early June, weeds are starting to grow, but the lily pads are not yet matted and the sub aquatic weeds are not to the top.
First start with deciding on what the target species is. There are more SMB then LMB, but there are some monster LMB. The spawn is over, or getting near the end.
I want to be on the water within minutes of them opening the park gates. I would probably start with top water chuggers right now. The shadows would be long, and if I am lucky there are some clouds. The SMB and LMB can be active so I will hit the shore line cover, under and around the trees, near the pad lines, etc. If I have not had a blow up in 20 to 30 minutes, I am going to grab my 2nd rod, already rigged. Yes, I have as many as 6 rods pre-rigged with different colors, sizes, and types of lures. I hate to loose time changing lures.
If the fish liked the chuggers, or showed some interest, I may stay with it until they stop, or mix up size and color to increase catch size and rates. Assume they ignored them, which is common that time of year. I will probably go to spinner baits now. I can work a little deeper and cover more water. I find that the chuggers this time of year will catch bigger fish, but it is not a "high" percentage offer so I am not willing to stick with it if it is not working.
OK, my color is based on past experience with this lake, water color, bait fish species, etc., but because the chuggers did not work, I am going with a smaller spinner bait. I will try a 1/4 oz on a spinning rod or a 3/8 oz on a baitcaster. If I am getting short strikes I will often quick change to a larger bait, or even to a chatter bait. If they are hitting but not frequent, I will change over to a smaller spinner bait. This will last for a half hour if no hits are had, perhaps a little longer if some fish are showing interest.
One hour in and I have used one chugger, one spinner bait, perhaps a second spinner bait, and perhaps a chatter bait.
Assume no fish have shown up, then they obviously are deeper. If they were following but not hitting, I might start the 2nd hour with a square bill crank bait, but if they are not, then now I might go with a Shad Rap or other medium diving crank. This is a good bait for covering water. Again, fish hits, I determine if I can do better. If I can, then 1.5 hours into the day I am onto lure number 4. By now, assuming no fish, either I am going to a deeper diver or I am going with a slow presentation. I have covered the water enough now to know something about the structure and I know the fish are apparently not hitting strongly. So, for the next half hour I am going to toss a deep diver. Again, the decision matrix, fish, can I do better.... no fish, change up. Assuming no fish, I am now going to a soft plastic fished at the edge of the weed line. Because of the slower presentation, I will probably stick with it for an hour then if required change up the color and or size.
By now, I should have found fish at some point, and knowing what they hit, what cover they were in or around, the color they preferred should all be considered. The bite will not last all day long because the conditions will change. Still, it is now about noon and I have used as few as one lure or as many as 6. Considering the gates open at 6:00 am, that means I have used up to one lure per hour.
OK, noon, and this time of year the sun is probably bright, winds medium to low, water very clear. If I have found a pattern, great. If not, I will probably start skipping under docks with soft baits. This can be difficult and I go through a lot of baits doing this. You tend to tear a lot of soft baits from the hook, so this can mean I am changing up every 15 minutes to maybe an hour. There are almost always a few fish under the docks so I will spend the heat of the day on the docks and under overhanging trees. Lures 7 through 14 used? Maybe. If you say it is only one lure but just different plastic, then call it 7 lures.
If things have worked well, with 7 or so lures used, I have found fish and have had a respectable day. If this is a miserable day, time to dig deep into my bag of tricks. Now I might look for the deepest weeds with my electronics and perhaps jig through it, or Texas Rig a worm in it. Perhaps I will go to a drop shot at deep shelves or steps, or perhaps the edges of deep flats. Each location and method would take perhaps an hour, so, ....... by the way, we have not even factored in the boat ride times, add that to the times between lures.
Now that the day is winding down, I will kind of reverse the process. With one exception, I will probably end the day with a mouse, rat, frog, or buzz bait.
Now, for a completely different type of day. Same place, same time, but now the weather is different. We have dark clouds, serious rain, even lightning, and the fish are feeding on anything. This time I started with the chugger, the SMB and LMB were hungry, and even with the clear water, the rain and clouds make the fish more aggressive. One lure, all day, killed them all day. I would not have changed a lure for anything, except for the fact that I bent up hooks so bad it was either change hooks or lures...... lures was faster.
I do want to comment on electronics. Sure, if the water is dingy, or you are fishing the deepest water your species utilizes in the body of water you fish, you can locate and catch fish. Normally my water is either too clear, too shallow, or the fish are just too spooky. Electronics do well at locating structure, but the fish tend to simply move out of range to see.
One last example.... I have a lake like Sprague. It is shallow, not deeper then 18 feet, mostly water less then 10 feet. The water is pea green by now, water warm, bass few, but numbers growing. In this case covering water is the only secret, no special tricks, no secret colors. This is a slug it out contest.... cast after cast after cast. In this case, I start with a spinner bait, with a large swim bait in reserve. I fish with one or the other all day. Rubber worms seldom cover enough water, top waters are seldom good this time of year on Sprague, crank baits usually mess up with the blue green algae that infest this lake. So, in this case, it is two lures all day, maybe 4 or 6 lures with color changes.
I hope this helps, but now you can see why it is so difficult to answer your question. I can tell you this much......
The more I fish a lake, the faster I find the fish, the fewer the lures I use.