I think Blount, Gray, and Bolden give them enough inside the tackles and two of the three will make the team, I'm fine with that, if you think they need another power back feel free to make the case for it.
I believe that we will carry 2 power backs, 2 3rd down backs, a ST/utility back and a fullback.
3rd DOWN BACK (2)
We may have our two among Cadet, White and Lewis, or not.
STer/Utility Back (1)
Bolden is the man here. And yes, he can backup at both other spots.
STARTING POWER BACK (1)
Blount is clearly the man.
BACKUP POWER BACK (1)
We may have one in Gray and Gaffney, or not.
IMHO,
1) We could add a 3rd down back if we don't have TWO in Cadet, White and Lewis, and
2) we could add a power back to replace both Gray and Gaffney, if neither can cut it.
I don't think that we are set at power back, or at 3rd down back. That being said, the need is much greater at 3rd down back. Compared to the situation at 3rd down back, we are much better off at power back. We have Gray who "should" be able to be a backup. And we have Gaffney.