look, you always want talented playmakers on your team, whether that be on offense or defense. if that means taking a really talented running back high(er) in the draft, so be it.
but the lions already have a decently talented running back room and an effective running game with it. you dont need a bellcow running back anymore. and the lions lack playmakers at qb, receiver, and everywhere on defense, so much so that taking walker high in round two doesnt make sense to me.