Blackburn Rovers are set to sign free agent Caddis, while Celtic's Ambrose is hoping to be granted a work permit after falling out of favour under Parkhead boss Brendan Rodgers.
Birmingham City fans have been voting for the player that they would not mind seeing the back of this month.
Which Birmingham players would fans not mind seeing the back of this month?
Glasgow Rangers have been heavily linked with making a move for the Arsenal youngster.
The Blues will remain comparatively light in midfield against their Midlands rivals with Robert Tesche and Paul Caddis still out injured.
Birmingham are currently enjoying the international break, sitting in sixth place in the Championship after a promising start.
The utility man is now playing in the Championship with Birmingham City.
Gary Rowett's men saw their Championship play-off hopes dented in their most recent game.
Paul Caddis made his first start for over a month in Birmingham City's recent match against Hull City.
The clash pits two of the sides chasing a play-off place in the Championship.