The sole remaining Brown acquired in the PHD era (2001-04) was one of his most ridiculed choices, long snapper Ryan Pontbriand. The last pre-Butch player is kicker Phil Dawson.

It’s natural that a roster turns over as players age and as new regimes gain control of player selection. But how much churn is too much?

I pored over the opening day rosters for the first games of the previous two regimes to see how many of those 53 men were brand new to the Browns.

In Butch Davis’ first game in 2001, the figure was 24 (45% of the roster). That included nine of the 22 starters, three of whom were rookies.

In the Savage/Crennel debut in 2005, 27 Browns (51%) were new to the team if not the league. That included eight starters (no rookies).

So it’s fair to guesstimate that in September Mangini’s first Browns club will be about half new. A third at the least.

In this season of churn — each vet cut to save his roster bonus, each comfortable little depth signing, each possible first-day draftee — we can hope each sometimes strange move might trend again with more wins, as the ’01 Browns went from 3 to 7 wins and the ’05 bunch gained by two to win 6.