The four West Ham youngsters could be ready to compete for first team places.
The four youngsters are currently spending the season out on loan from Upton Park, with them enjoying busy campaigns in League One and League two respectively.
They will be keen to make their impression on manager Slaven Bilic when they return to the club in the summer though to try and earn a first team place next season.
And Westley has urged them to return and prove their first team credentials in the summer.
“With the Under-21s being so competitive in the league we hope they’ll kick on next pre-season,” he told whufc.com.
“Some of them will be ready for the first team and will be able to help. Lewis Page at Cambridge, Josh Cullen and Reece Burke at Bradford, Martin Samuelsen at Peterborough they’ve all had great experiences.”
“They have got to prove next pre-season that they’re ready to help the first team and help the manager.”
There are certainly chances for the youngsters at West Ham, with Reece Oxford having been given his chance earlier in the campaign and impressing.
His start against Arsenal came as a surprise to many, but it shows that manager Slaven Bilic is willing to give youth a chance in his new look Hammers side.
Their chances will likely rest on the work the club does in the summer, as a raft of big money signings would surely mean less of an opportunity.