That poster is pretty terrible in general considering their dogmatic views on football, but this attempt at wummery on a topic he clearly doesn't know about is quite amusing. Over his last 4 seasons Fergie won 2 leagues, went to 2 CL finals (losing against a team absolutely everyone lost to and is widely considered as the best/one of the best teams in history), got knocked out in his last season mainly due to a very dubious call in a tie we were dominating. He regularly changed his assistants to keep things fresh, and adapted over 35+ years in management to win absolutely everything and everywhere he was a manager. He would have adapted to this current era of football with no issues as he was a genius of a leader - people act as if the last 10 years of football were a reinvention of the sport, when it's basically cyclical with different trends coming back, enhanced by advances in sports science and technology.It's the combination of CL finalist in 2011 and champion two of the last three seasons. Football must have been relieved when that outdated manager retired.
It's an absurd point to try to make, and I'm not particularly surprised of the identity of the person spouting it.