Regardless , Guttmann 's observation about football and a coach 's lifespan does hold true to Guardiola and Mourinho , for now .
Whether that freedom helps him settle and take root at Old Trafford remains to be seen .
Guttmann 's observation about football and a coach 's lifespan does hold true to Guardiola and Mourinho , for now .
Whether that freedom helps him settle and take root at Old Trafford remains to be seen .