No issue with someone like Matt being considered for the role if it was vacant (it isn't, and I doubt it will be for some time), but I'd have concerns around (to a lesser extent) him getting the respect of the players in the short term, and (to a larger extent) getting the respect he'd need from the board and owner.

Plenty have moved into management with no real pedigree or having worked through the pyramid and had success, and an established manager is no guarantee of anything.

In principle, at the right time, I would be comfortable with Matt or a move of this kind.