I think Tom has gone backwards slightly, but that's hardly surprising given the crazy management situations we've found ourselves in. I think Silva could be a good catalyst for another leap forward for the lad, and I've no doubt Silva and Brands know him and want to develop him. I'm optimistic about what the new managerial change could mean for him.
It's not really uncommon for young players to have a worse second season, is it? That's often more to do with teams just finding ways to exploit his weaknesses and deal with them, rather than players regressing though.
He's still comfortable on the ball, he still generally makes the right decisions. The opposition are giving him less time on the ball and marking him more closely. The passes he likes to play into the channels or drilled into the attackers run haven't been available as frequently due to our tactics and personnel.
He's also often slightly out of position defensively which has been exploited plenty of times, which has led to him giving away those niggly fouls. That's not because he's slow, but because he's starting 5 yards further back than he should be.
I'm not being an apologist for him here. His performances weren't great, but the raw attributes are still there. And holefully, as you've said, with better coaching and more experience he'll have the nous to be effective again.