We generally talk about football players and positions in the simplest way possible. You're a rushing quarterback (or maybe a "dual-threat") or a pocket passer, a between-the-tackles runner or an all-purpose back, a wideout or a slot receiver, etc. Some of the most fun players in the sport, however, blur the lines, bringing unique skill sets to the table. The best coaches then figure out how to use those unique talents to great advantage.
For a given team, then, you might find a player or two who can create matchup advantages in a few different ways. They are worth watching and enjoying.