Armstrong went from being a thickly built WR with track champion speed to an RB that doesn't move well with the added pounds. Not really the transition Prosise made.
Think BK wanted Kyren Williams to be ND's version of LSU's Edwards-Helaire but maybe he's just not adding the strength the way CEH did.
Flemister showed flashes last year but still was a bit raw and not sure if he added any strength over the off season.
Jahmir Smith looks to have the frame to carry the load and enough athletic ability but he might be the only one on the roster who can.
Incoming Chris Tyree won't be the workhorse though he should see a lot of touches.
Now Trevor Speights has 4yrs in a program like Stanford so he'll come in built to play. Has some experience with Coach Taylor. Could help mentor new and current backs whether he wants that job or not. Just having him on the roster helps that. Players can watch and just learn from his reps. Not much college tape to watch but his HS tape is impressive. 10.9 sprinter with some with wiggle and power, 4th all-time rusher in TX history... He would've been a good pickup for ND out of HS. Even if BK gets Shipley (deciding before May 10??) next year it'll be nice to have Speights on board SO LONG it doesn't scare a talent like Shipley away.
That being said...I think if Speights is really thinking NFL next year he should probably go somewhere to be showcased. Rice might not be the NFL launch pad but he'd most likely be the top dog and have a boatload of touches.