I hope he stays on top of the PR depth chart for the following reasons:
1) UM's has Zero depth at CB this year, and seeing Warren (potential all conference selection) returning punts would scare the hell out of me (and seeing Cissoko leading for the KR spot does too). No staring CB should play any special teams this year. Period.
2) He can concentrate on being a "Return Specialist" this year. Kelvin Grady's apparent spot in the 2-deep means Robinson will see limited action on offense. But this gets him on the field as a playmaker to get the ball 5-8 times a game.
3) Allows Odoms to concentrate solely as a SR, allowing for fresh legs at Slot and PR.
4) The more the merrier... as many slot-type-guys that get the ball in different facets of the game... the better. Last year was all Odoms all the time. This year we'll have at least three 5'9" guys getting the chance to score.
EDIT: 5) Maybe this quashes the "T-Rob potential transfer" rumors