All about opinions and I don't want to sound like a dick, but it's the 'get back to his old self' bit I struggle with. We have no idea what his level is because he's played so little. He's made 24 appearances in his entire career. 19 of those came in the Championship two seasons ago where he had some good games and some not so good (yes, more good than bad) during the run which led to Mowbray getting sacked. I dispute that he was excellent, player of the season or any of the superlatives people have thrown at him but even if he was, it's still less than half a season. Dennis Cirkin was excellent for a similar period last season then fairly poor after that. Dan Neil had a good 3 month period where he looked our best player. 15 or so quite good games in the second tier is no more than a glimpse of potential, you need to show far more than that to be talked about as a first team Premier League player imo.
Hume has played over 120 games and had no more than a dozen poor ones. Mukiele has nearly 150 appearances for Leipzig and nearly 50 for PSG, including 35 in the Champions League. Huggins has shown nothing to suggest he's anywhere near that level. He's not worth persisting with.