Read a pretty scathing article by Marcus Hayes this morning on the firing/ non- hiring of the DB coach .
The key part of your post is "Marcus Hayes."
The article in question appeared in the Monday print edition of the Inquirer. Hayes is a columnist of the Philadelphia Inquirer, not the beat writer for the paper (that's Jeff McLane).
Dennard Wilson was a very good DB coach, and his leaving the staff is a negative. But it was pretty much expected. Wilson interviewed for the DC position, but didn't get it. It would have been uncomfortable for the new DC and for Dennard Wilson for him to have stayed on the staff. In the few days between the announcement that Sean Desai was the new DC and word that Wilson was leaving, the head coach indicated in a carefully worded comment that he was unsure if Wilson would continue on the staff.
Marcus Hayes has a history of being provocative in his columns, though frequently his pronouncements turn out to be untrue. Hayes claims in the article that Head Coach Sirianni fired Wilson. There are other articles out there that Wilson informed Sirianni, after all of the Eagles coaches flew to the combine in Indianappolis, that he was not going to return as DB coach.
I've read pretty much all of the articles that have been written by the beat reporters that cover the Birds since the news that Wilson was departing came out. None of the beat reporters have indicated anything close to what Marcus Hayes stated in his column. That doesn't necessarily make Hayes' claims inaccurate. But in general, when a reporter has inside info that they publish, the others on the beat check with sources and confirm it and/or write their own article on basically the same info. That this hasn't happened in the past few days leads me to believe that Marcus Hayes was, once again, being Marcus Hayes.