Fishing structure is not that hard, it just takes a little time on your favorite waters, I think back when I was a bank beater like many others here and often wishing for my first boat, I found that once I made the investment, just like many others, I was still a bank beater, I just fished from the opposite direction, then one day I got pushed out of my spot by a local tournament angler, litterally, it did not end well for either of us, then it clicked, I started to fish deeper and more open waters, no one else was so I figured what the crap, at least no one would bother me, after a few years of searching and reading books and putting together my own little pieces, I found this site, and one feller in particular tought me a ton about fishing structure, his handle here was Catt, one of the absolute best at making you do your homework and giving you hidden tips as you go along, it seems as if he knew my favorite lake as well as I did, he was forever making me think and work, light bulbs would burn bright inside my head when a hint he would drop comes to light on the water, him and fish for dollars were two of the best there ever was here at least I think so, there is a time and a place for everything, one thing remains true, fish relate to structure all the time, it's their highways and byways, it's how they find cover, it's how they get to spawning grounds in the spring, you name it, the fish use structure in some way to get to where you find them, look around the next time you pull up a nice fish and you will soon start to put together pieces of the puzzle as to why that fish was there and where it came from to get there, as for deep structure or deeper structure, when the fish are in a group on the bottom is my absolute favorite time to be on the water, drop a marker out and there are days when you can fish for hours in one spot with a mixed variety of baits like the jig, a spoon, a C-rig, just because I like fishing deep structure when this opportunity arises, does not mean that we should forget how deep is deep and how structure relates to the water depth, 10 feet is plenty deep to find continiously productive structure, spend time on the water and start looking for those flat areas now that the fish use to spawn, keep looking and you will soon see the channels and such they use to get to those flats, once spring gets here and the fish start to become active again, go to those flats you found and see if you are catching the smaller males, if you are, then get to those channels and such, the big girls will be coming soon and they are there on those ledges working their way to the flats, it could be 10 feet deep or 30 feet deep, you simply have to get out there and look.
Good luck and be safe !!!