Because Carrick is saturated in the feel and expectations of UTD. He's part of the furniture there.
Tudor is a complete outsider with no PL experience.
It might be jolly clever and he knows exactly what to do, but it feels risky.
Less risky than the desire to bring in an ancient redknapp tbh .
Considering it's extremely blatant they're after Poch there wasn't much choice for a temp only role. I personally would've taken rose but very slim pickings if you're letting them know it really is just a 4 month only job


