John Kobiela sent me the link to some interesting statistics from the Premier League.
The articles on EPLStatistics discusses attrition (rates
of employees leaving an organization) in the Premier League.
Very interesting, however the questions (to me) still exists if continuity precedes success or vice versa with regards to coaches. The article gives some insight for players, however, I believe it would be very interesting to see some coaches and their attrition as well, as it is easier to change the coach instead of a couple of players.