Spence was never going to get used this season, we have 3 players who play in that position, the club invested heavily on Porro who is better and more moldable and Emerson who is probably the best option to play Ange's FB role right now.
2 things can be true here:
I actually blame the club for buying him for Conte as he was never committed to a long term vision but then you can say the same about any player we bought for him can't you? But that's what happens when you have a manager who is here for a short term, some players just aren't going to fit his plans.
I do put equal blame on Conte for not actually playing him, like not even giving him a chance in the Cup matches is now way to treat a young player. The problem was that he continued to play Emerson who was shite for most of the season which killed his confidence so I'm not surprised that he's not the same player that he was a year ago.
I feel sorry for him, club politics played a massive part in all of this - a complete shit show all round.