"We are very much in favour of it," said Shaw. "At Preston, we want to be bringing our own youngsters through because it's something that we've not been doing as well as we should have.
"However, this rule can only help the chances of our young players establishing themselves in the first-team squad and there are a few lads looking to push their way through at the moment."
And Peterborough director of football Barry Fry hopes it is only a matter of time before the rule is replicated in the Premier League.
"I think it is good that the Football League are showing the initiative," he told BBC Radio Five Live, "and I'm sure the Premier League will look at it.
"Hopefully in years to come there will be a quota in the top flight too. We've got to adopt it if we're going to be a force in world football."
However, Grimsby Town boss Mike Newell was less enthused, telling 5 Live: "I take it with a pinch of salt. It won't have a massive impact in the lower divisions and I think it's probably another publicity stunt by the Football League."
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.