Complete, competitive Kerryon Johnson could transform Detroit Lions' backfield

The Detroit Lions took running back Kerryon Johnson with the No. 43 overall pick on Friday. Free Press sports writer Ryan Ford takes a look at the pick: Wochit

(Photo: Christopher Hanewinckel, USA TODAY Sports)For all of the great runs he had, and in leading Auburn to last year's SEC championship game there were many, the one image that Auburn running backs coach Tim Horton will never forget about Kerryon Johnson — the picture that tells more about the player the Detroit Lions traded up to get in last week's NFL draft than anything — came after the team's Sugar Bowl loss to Oklahoma last January.

Johnson was a sophomore at the time, a backup to Kamryn Pettway who was patiently waiting his…