Portsmouth have named Richie Barker as their new manager and Steve Coppell as director of football.
Wigan have announced Uwe Rosler as their new manager after agreeing compensation with Brentford.
Inverness have signed QPR midfielder Jordan Gibbons on loan until the end of the season.
Caley Thistle say the 19-year-old wide midfielder is expected to feature in the squad for Wednesday night's game against St Mirren at Paisley.
Inverness boss Terry Butcher has signed defenders Danny Devine, from Fleetwood, and Charlie Taylor, on loan from Leeds, already this month.