Whats happening to Manchester United

Though a draw away from home might please lots of other club but for mighty manchester united its a loss of 2 points.they had their point in bag but a moment of madness took it away from them.this was not the first time they gave away their lead this season.this might suggest few things about them.some of u might claim me wrong but these are my personal evaluation:

1. their substitute bench is not as strong as it used to be
2. their dependence of old boys like scholes and giggs who can't play full 90 min 
3. missing a central figure of Rio ferdidand.i.e evans in experience and they don't have any one else to replace him  
4. out of form wayne rooney

but they do have some positive as wells ,bervatov and scholes are in prime form .they must capitalize it and make some required changes.this might be little early to say but chelsea are running away with the show.man u must stand up and challenge them