Yeah, I'd put us at 10. Kornet is a missed opportunity to me, because there was seemingly room to upgrade the team at his spot. I see him as a fringe roster player. Same thing with Banton, Walsh, and Champagnie. Walsh is a legit prospect, though, and I'll concede that Kornet didn't embarrass himself. I just wish we had somebody who was better when we've got so much injury risk in the front court.
Agree on all, but my prediction is that we are going to waive Champagnie and add a vet min player to replace him, or maybe some other transaction to replace Champagnie. I know that Stevens the other day said "we are set with bigs" or something like that but I still think we could add a PF, which would bump Kornet down the depth chart. And even if it is exactly a 3/4 as Stevens said, we can still upgrade Champagnie's slot from a bottom roster prospect to an actual 8-11 level player. If we do even that one simple move, it gets us to 11.5 useful players (we can put Kornet as the 0.5).
I will say further that even if we aren't able to upgrade Champagnie's slot by the start of the season, I am not that concerned to start the season just the way we are. Finding the right FA to bring in on a min contract is not as simple as going to Trader Joe's and picking up some food. And if it is a trade, it is even harder. The player still has to be a good fit, accept the role, be good enough to actually help, want to be in Boston, and so on. Or in the case of a trade, the other team has to be willing. We don't need to be impatient on this.