Id argue Sissoko more than Winks, having him in there was like playing with 10 men.
Changed Winks game pairing them together, and it was downhill for him from there.
Im not sure Winks wouldnt have ended up just the same as now, maybe he would, but for a spell he looked a real player in the making.
I like Gray a lot, theres something about him. Hard to argue he's been particularly great up to now though. I saw the mention of Rice earlier and I think it rings true. Rice obviously was quality from the beginning, had that something about him, but it took a while to find his true position and for him to really shine. And I agree, I think Gray might be best used in a very similar way.
Once again, as with many threads in the forum right now, I think he is suffering from how shit we are as much as anyone. In a settled, coached, rehearsed system I suspect he would look a lot better than he does now.
That said, he is also clearly very young, inexperienced and raw - with much to learn. So errors are a natural part of things as well.