9. Paul Tisdale - 0.95
Rovers fans are unlikely to need much of a reminder how poor Tisdale’s tenure was either, having only left the club last month.
The 48-year-old came in after Ben Garner’s dreadful spell in charge last November and though there was an early upturn in form, things quickly went downhill for the former Gas youth player.
With the club only out of the League One relegation zone on goal difference he was sacked, with Joey Barton replacing him.
Tisdale’s 19-match tenure saw Rovers win five times and draw three times – meaning he finished with a points per game ratio of 0.95.