How could Baker have undermined his team at that point? When the Rolen decided to come back, the Reds had already reached or exceded their budget for 2013. Jocketty had Frazier and Donald in place as the third basemen. It was Jocketty's job to put the roster together and Baker's job to manage them.
We are not talking about the Dodgers, Angels, Yankees, or Red Sox here. Forbes Magazine recently ranked them 24th in team value. They have to play their own form of Money Ball. From 2004 through 2011, the Reds ranked 12th, 13th or 14th in N.L in attendance. Jocketty, who built winning teams in St. Louis, is doing pretty well in Cincinnati with a very limited budget. Baker's job is to manage the players he has been given and not to mingle in Jocketty's job which he does well.
Rolen would never have signed a minor league deal and would have been foolish to have signed a discount for Cincinnati when there are other options out there. This story is about money and not about Baker's desires.