I think the fact that Maddison - on a booking - was removed against ICT suggests that he'll start against the Tims. I think the midfield of Jack, McLean and Maddison seems to be working, and I think we just have to go with that. I don't think that Celtic are that strong (physically) in centre midfield and I think that those 2 can match them on our day. Where Pawlett used to give Brown the run around in attacking midfield a few years back, I reckon Maddison will do the same. It'll be interesting to see if the ref will book him when the inevitable deliberate hack comes in early doors.
The alternative to Maddison is obviously Shinnie into midfield, McLean in behind Rooney and Taylor back in with Considine at left back. With Shinnie having a mare against the Tims last time he played left back, and Taylor getting a good but of game time against ICT, there is a worry he might choose this approach. Hopefully the subs of Taylor and Reynolds were just to keep Celtic guessing. I think the players have proved themselves in the last couple of games to at least stick with the midfield. I'm guessing he won't risk Stockley and Rooney though, that'd be a step too far, and understandable.