Yorke is convinced Mourinho will re-invigorate United 's squad .
Yorke is says the 53 - year - old 's track record in management suggests can get the best out of the players inherited from his predecessor Van Gaal .
Yorke is convinced Mourinho will re-invigorate United 's squad and says the 53 - year - old 's track record in management suggests can get the best out of the players inherited from his predecessor Van Gaal .