Part of Reinhart's kickstart last year was his extended time with Ryan after spending a month centering Zemgus/Moulson/Griffith. Like you say, when Sam is making GOOD players better, the team and Sam see results, versus expecting him to carry guys like Crosby can.
And the issue is we have no established good players that aren't being taken up by Jack right now, and Sam wasn't clicking with Jack, so we don't really have anything to do with him and I suspect he won't see the same level of offensive resurgence because of it (Though he really needs to be back on PP1)
I'm not worried about Sam, he's saddled with an abnormally low on-ice Sh% at the moment, it will go up. He's still in the right areas and making smart plays, which is what he needs to do.
but there are two things that bother me, 1) you can definitely see when he is more actively moving his feet and when he's not, and it has nothing to do with his linemates. I expected more consistency from him after his contract situation. And 2) When his line works it's ass off to create a chance, f***ing bury it:
This chance against Calgary needs to go in, it puts the game away and gives us 2 points. I say the same the thing when it happens to Eichel. Hell, I was screaming at my tv when Skinner didn't bury his 1 on 1 against Anderson last night in what would have been the GTG.