It is a bit early to make a judgement on Bulut - but so far he seems to me to be a good appointment.
Of the other 23 managers in the division the ones I think would definitely be an upgrade are: Mark Robbins, Kieran McKenna and Steven Schumaker - with maybe Tony Mowbray and Liam Rossenior also on that list.
Wouldn't swap Bulut for any others - even the ones with promotions on their CV like Farke and Wagner.