text: american football and nfl? what are the jobs of the following positions: quarterback, wide receiver, running back. what typical physical features does each position possess ie. speed, strength, agility etc. also who is considered to be the best of those three positions in the nfl? a running back will have all three attributes you have said, sometimes they are the fastest of the three positions and other time they are the strongest.  most quarterbacks will have the least of these three attributes. i say most because of guys like, michael vick and vince young, they are exceptions.  wide receivers will have speed more than anything. they tend to be lighter in weight and taller.  best in their postions: running back: ladainian tomlinson, great speed, strength and agility and can catch passes well too. he is the whole package when it comes to running backs. quarterback: peyton manning, smart, great arm and knows the games. wide receiver: steve smith, undersized but plays big. great hands, speed and runs great routes.