Another pivotal player to watch is Beth Myers, who was Romney's chief of staff during his days as governor and led his vice presidential search that culminated in what is widely regarded as the politically successful selection of U.S. Rep. Paul Ryan of Wisconsin.

Madden declined to discuss a potential senior team in a Romney White House but conceded the GOP contender has a history of taking care of his own.

"He is a loyal guy. But I think he wants the best and the brightest with him to help solve big problems," Madden said.