Christie, like his pal Stuart Armstrong, 'suffered' at being on relatively low wages at Celtic when they were (at different times) established first team players. The reason for this was they came from low paying clubs on Dundee Utd and Inverness Caley Thistle. They got a HUGE increase when they first signed but lagged behind others who were earning much more but contributing less.
Armstrong went from around £14k a week at Celtic to around £50k a week at Southampton. He always wanted to get to the Premier League, as do most players. Total respect to Callum McGregor incidentally who could easily have made millions more by following Armstrong, McGinn, Tierney, Christie etc in opting to leave or reject Celtic for the big bucks on offer in England.
Charlie Christie gave an interview to Evening Times/Herald in the close season after 9IAR and that was the first red flag that things were going to go badly wrong at Celtic last season. Christie started that season well but got injured and the clear POTY was Odsonne Edouard. Yet Charlie reckoned his boy, who was injured for a period, deserved that award for his goals - think it was ten.
Further Christie clan interviews followed that season and one thing was missing, any praise For Celtic. It was all Inverness were great, loan spell at Aberdeen under Derek McInnes, wonderful etc - when he was injured he had a Scotland reference pinned to his training equipment, rather than anything to do with Celtic. Christie wanted a big move and played for himself last season imho.
Christie followed the money. He followed Armstrong, Tierney and McGinn but ended up not in the Premier League but in the Championship. That might have been a good idea though as Bournemouth are top of the league and on course for a place in the Premier League. He could have joined a lower level Premier League side that could end up relegated.
Wish him no harm at all but the failure of our club to handle the Wantaways went a long way to cost us the ten.