And the Everton manager insists the Merseysiders are in a much stronger position than when they sold Wayne Rooney to the Reds in 2004.
Rodwell and fellow youngster Dan Gosling, scored against United after coming on as substitutes and Moyes said: "They don't let you down. They came on and both of them got a good goal.
"There's been quite a lot of attention towards Rodwell for a while. But strangely enough, it was Wayne that worried me a lot more. It doesn't worry me quite so much with Jack because we've been through it before. I don't think we were quite ready for Wayne when he came on the scene but we're certainly ready for Jack and our team is good enough to keep bigger suitors away.
"The boy is going to be a good player in time but it's all potential and we have to bring it along at the right pace."
Moyes believes the current Everton set-up would have been able to keep Rooney.
"If Wayne was at Everton now I think it would be completely different," said Moyes.
"At the time Wayne came on the scene we were fifth or sixth off the bottom so it was a completely different Everton then to what it is now."
Would you like to see Rodwell at United? Have your say.
Source: Manchester Evening News