Robbie Keane, Paul Ince
Bruce, Beckham, Bosnich, Butt, Brown, Berbatov,
Alex Ferguson by a long way.He signs the best players for his team.
Alex Ferguson never played for his national team Scotland.
Gary bailey, jim leighton,mark bosnich,
Duncan Ferguson, alex cleland, Andy gray
No, Manchester United did not get relegated under Sir Alex Ferguson. The lowest league position achieved under Ferguson was 13th (out of 20) in the 1989/90 season.
There are quite a few managers that once played under Sir Alex Fergsuon: Paul Ince - was Blackburn Steve Bruce - Sunderland Mark Hughes - was Man City Steve Coppell - was Reading I think that's all of them - there may be a couple more, but hope this answer helps :)
Manchester United won 13 Premier League titles under Sir Alex Ferguson.