"We'll be appointing a new skipper probably this side of Christmas," McGinley told Reuters at the British Masters on Sunday. "We are very disappointed to have lost the Ryder Cup. It hurts to lose ... the event goes from strength to strength, this time it didn't go our way but we'll re-galvanize and come at the Americans again."
Led by Davis Love III, the U.S. defeated Europe, 17-11, on Oct. 2 to win the Ryder Cup for the first time since 2008.
McGinley, the 2014 captain, will be part of the team that selects Clarke's successor.
"There are five people making the choice, the three most recent captains - Darren, myself and Jose Maria Olazabal -combined with European Tour chief executive Keith Pelley and someone nominated by the Players' Committee," McGinley said. "I believe that player is (Open champion) Henrik Stenson. Hopefully we'll get together before Christmas, get that decision made ... and go on to regain the Ryder Cup."