The striker was rotated to the sidelines at the Ricoh Arena but, four minutes after coming on, kickstarted a move that saw several players hit the woodwork before then converting the only goal of the game to secure three more precious points.
Dobbie was one of three changes against the Sky Blues with Moore and Joe Allen also making way for Leon Britton, Darren Pratley and Craig Beattie.
Manager Brendan Rodgers is again now faced with a decision as to who he goes with from the off as second meets sixth at the Liberty Stadium.
Left-back Neil Taylor went through a handful of shirts on Tuesday as the club's medical staff struggled to stop bleeding from a head wound sustained early on but he completed the 90 minutes and should be fit.
Captain Garry Monk (knee) and midfielder Andrea Orlandi (thigh) again miss out.
Source: PA
Source: PA