What I expected is what he's delivered. He's very much a squad player for them. He's been used mostly in the Europa League, to deal with the extra games, which is why he didn't start the final, despite injuries and Kante being half fit.
There's nothing wrong with it like and as long as he's okay with being played against Malmo and then dropped for the important games, then he's going to have a great time. That's certainly a lot better than the options that would be open to him if he left Chelsea now. There's just a bit of a difference between Ross going to sit on the bench for most of the season, coming on for cameos in finals for a below-par Chelsea side and say Raheem Sterling going to City to play a starring role, making a real contribution to winning doubles and trebles and being trusted to play at the business end of those competitions.