PHILADELPHIA (973espn.com) - The Eagles have denied the New York Jets’ request to speak with quarterbacks coach John DeFilippo about their offensive coordinator position, according to ESPN's Adam Schefter.

Organizations can block assistants from interviewing with another team unless they are up for a head-coaching position. However, it’s a fine line to walk and you could alienate an employee up for a promotion with another organization as is the case here.

Earlier this week, an NFL source confirmed to 973espn.com that the 38-year-old DeFilippo was at the top of New York’s list to replace the recently retired Chan Gailey.

DeFilippo, a former offensive coordinator in Cleveland before joining the Eagles coaching staff, was a big part of rookie quarterback Carson Wentz’s development this season.

He, along with head coach Doug Pederson and offensive coordinator Frank Reich, are all former signal callers and provided a nice sounding board for Wentz as the 24-year-old when from small-school standout to legitimate NFL starter.

Reich is believed to be in the mix to become the Buffalo Bills next head coach and it's conceivable the Eagles have promised DeFilippo the OC job if that comes to fruition but Reich is hardly regarded as the favorite to get the Bills gig.

DeFilippo was previously the Jets' quarterbacks coach in 2009.

-John McMullen covers the Eagles and the NFL for 973espn.com. You can reach him at jmcmullen44@gmail.com or on Twitter @JFMcMullen