So we've got:
Blackburn and Gary Bowyer
Bournemouth and Eddie Howe
Ipswich and Mick McCarthy
Middlesbrough and Aitor Karanka
Rotherham and Steve Evans
Sheff Wed and Stuart Gray
Wolves and Kenny Jackett
If my fumbled calculations are correct they are the only clubs who kept their manager for the whole season (not including Derby and Brentford). You've got to say though looking at a lot of the sackings that happened, there is justification there for them. But then there are only three spots for promotion up for grabs so maybe some loyalty might help.