I think he is good enough for United; clearly Moyes disagrees. Here's my evidence. Take a look at the results of the 31 PL games he has started in the previous 3 seasons (2012/3, 2011/2, 2010/1), we average more points per game with him in the team (72/31 averages out at 88 per season against an actual average of 86 points per season) and that includes 3 starts against Arsenal, 2 against Man City and 1 against Chelsea so it is not as though he only features against the weaker sides. He has even started dead matches at the end of the season in which we've thrown away points such as the 5-5 against West Brom.
The fact that Moyes barely ever plays Anderson says more about Moyes than it does about Anderson. Contrast our record when Anderson starts against that of Giggs (again last 3 PL seasons 44 starts 88 points so an average of 76 per 38 game season, against our actual average of 86)
I'm not really sure about that. Bebe was part of the team that beat Wolves at Old Trafford. Does that mean he's good enough for us?
The fact that Giggs plays ahead of Anderson says it all about the Moyes-Anderson relationship.
Last season, in the first half, he was really good. Games like Arsenal at home, where he came on and was mostly responsible for us looking more competent after struggling in the second half. Games like QPR, where he came on and made that great pass to Hernandez. Games like Reading away, where Fergie, believe it or not, had so much trust in Anderson that he played him behind Van Persie, with Rooney moved to the RW. He didn't disappoint either, but he picked up an injury. After he picks up an injury, he's really slow to get into form. The second half of last season was Anderson at his worst.
He's talented, but I just don't feel comfortable knowing that he's in a midfield two. If he's in a midfield three, then fine... He generally looks better. He has some endearing traits: his passing, ability to beat players by using his strength, and enthusiasm.
He doesn't, however, have the consistency to complement these traits and that's mostly been his problem. His fitness is also an issue. That's why I will never agree with the Anderson > Cleverley argument. Just because a player is a better passer, excels in certain elements, or is maybe more technically gifted, doesn't mean they are more beneficial to the team.
Look at Cleverley, for example. He's a reliable player, certainly in 11/12 and the first half of last season, he was good. You know what you're going to get with him and he has looked really good in the last three fixtures. Against Stoke, both played on the same pitch, under the same conditions. Only one player, however, looked committed and was trying to augment their game.
I like Anderson and think we should keep him, until we buy a better midfielder. I just don't think Moyes has gone wrong. He's still learning about the team. And I understand that the Stoke game is Anderson's first start in a long time, but you still expect better.