Using statistics to prove who is best manager is pointless. All statistics and be manipulated or read, for example
95% of people with XXX cancer will be cured and 100,000 people a year will get it - sounds good odds
Or
5000 people will die of XXX cancer this year (almost 100) per week - sound horific
In football a range of stuff will influence results, strength of other teams in league, form of those teams when they play, injuries ect etc. ......
Does Martinez set his teams up well - yes
Does he have premiership experience - yes
Has he built teams on relatively low budget - yes
Does he have good connections at other top clubs - yes
More importantly, would any other manager with his credentials be willing to come in to our club in its current state?