Until the inevitable next player transaction, the turnover of players on the Cleveland Browns’ roster stands at 43 percent. Coach Eric Mangini isn’t sure what a normal rate is, but it’s safe to guess that 43 percent is a high number. It’s an indication that a new coach is taking over a team that was terrible the year before, which means open season on players brought in by previous regimes. The main issue isn’t how different the roster looks compared to last season. The question is: how much better or worse is the team? Considering the shaky track record former general manager Phil Savage had in four years on the job, it shouldn’t be difficult for Mangini to achieve better results. Then again, we thought the same thing when Butch Davis replaced the Chris Palmer-Dwight Clark tandem. Thirteen of the 30 draft picks during the Savage years are still with the team, which would seem to be a poor average.