Sunderland is close to Hartlepool ...During the Napoleonic wars a ship was wrecked and a monkey was washed ashore ..The locals hung it thinking it was a French spy
a little pure Maths ,,,if the probability of changing a manager is 30% or 0.3 in a year then the probability of changing 3 in 3 years is 27/1000 or 2.7% I can give the figures for more years if you want