I think overall his performances have shown that there should be a place for him in the team more often than not
The problem is that to play him in any of the positions he can play, he needs a lot of balancing out by other teammates
If you have him in a front position, you'd want someone fast and alert to get onto his holdup play and provide a contrasting threat so the team arent predictable
If you have him in central midfield, you need other players like Ander looking to move the ball more positively and faster to make up for his willingness to go backwards with negative play
His own performances have been worthy of getting starts, but we've struggled to play well in midfield or as a team even when he's played well because of his skillset not really fitting the positions he plays.
Ideally you'd want your tall, physical player in the Matic or Wanyama position in front of the defence, but he doesn't have the concentration and positioning for it