The St. Louis Cardinals thrive on continuity. Bill DeWitt Jr. has owned the team since March 1996 and he's basically had two managers and two general managers. Tony La Russa was hired in 1996 and Mike Matheny replaced him in 2012. Walt Jocketty ran the front office from 1995 through the 2007 season, when John Mozeliak replaced him. Under DeWitt's ownership the Cardinals have won 10 division titles and made the postseason 13 times, winning World Series in 2006 and 2011.
So when the Cardinals make change, it's not due to a lack of patience or on the whims of an impetuous owner.