I'm not even defending Moyes I just think it's ridiculous that what's good for the Goose is not considered good for the Gander by people who really should know better
The analogy breaks down though...
Martinez is not still an employee of Wigan Athletic,
Martinez was not given access to the squad for 2 full games after accepting a job with another club
Baines has not come out and stated that he wants to go to another club.
In general, managers go for old players, which is fine. But it's a bit different in that given the long relationship Moyes had with the club, we didn't take certain precautions out of trust. We didn't force him to buy out of his contract or run it down before discussing terms with Manchester United, we didn't keep him away from the first team squad to prevent him from turning heads. Moyes' situation is very unusual, Martinez's parting terms with Wigan was pretty typical.