top physios. All the big clubs have got the best environment where you can manage youngsters coming through so they've got no excuses in my book.
"Either you're good enough to get in the team or you're not. It's as simple as that."
While Sir Alex Ferguson was often happy to promote youth, and included 18-year-old Adnan Januzaj on the bench for his final game in charge at West Brom, that has not always been the case at other clubs striving to match the success of the champions.
"I think the problem in getting youngsters coming through is that clubs want instant success," Whiteside explained to ManUtd.com. "They want to win things yesterday not tomorrow and I think it's harder for kids coming through.
"They've got to be exceptional today to get into a team at 16 or 17. It can be done - don't get me wrong - but big clubs and other clubs with money are looking to Europe. Maybe they're not buying top-class European players but looking to Scandinavia and elsewhere and that's blocking kids from coming through in England.