The fact that Kelly is even looking at a transfer shows what he thinks about the rb group. The lack of much spring ball hurt this group probably more than any other. They needed the work.
Overall, the rbs are one big shrug. I don't want to badmouth him but Armstrong is a huge question mark-- a lot of "promise" surrounded by not great production and injury. He still needs to learn how to be a running back and the lack of a spring didn't help him. C'Bo/Williams/Smith have been virtually indistinguishable from one another in terms of lack of production and consistency. Granted Smith was injured but none of these three have shown much to date to be excited about. Last on the depth chart, Avery Davis is, at best, a gimmick guy and Tyree should really subbing in for the plays where you would see Davis. Hard to really count him as a rb since he will rarely see the field at that position. As much as people might anticipate Tyree's arrival in 2020, freshman backs rarely make huge impacts their freshman years, especially ones of Tyree size.
I don't know what Speights adds overall in terms of his skills but given the vast question marks of the current rbs, why not?