Fighters Who don't use their natual attributes.

I've always heard a lot of talk about tall guys who don't fight tall but what about fighters who attempt game plans that are completely beyond their skillsets? Guys who say, fight fast but don't have the reflexes to pull it off? Luis Collazo and Adrien Broner strike me as two guys who don't have the reflexes to pull off their speed styles and don't know when to give up on it (or don't have the tools too) when they run into people faster than them. What about guys who try to fight like a puncher when they don't have the ability and suffer from constantly overcommiting and getting caught? Any other examples you can think of? Any people who regularly sabotage their fights by not playing to their strongest skills?