Who are the options to be the Philadelphia Eagles' next offensive coordinator?

Here we are again. After we scoured through the Eagles' options to replace Sean Patricia, news broke that Nick Sirianni is on the hook for replacing not one but two coordinators. Brian Johnson, after one season, was not afforded the patience the team exercised to success with Michael Clay. Instead, he takes the fall for an offense Sirianni has professed time and again is "mine."
How the team proceeds in this search will tell us a lot about Sirianni's stubbornness about that idea. The selling points for the job are obvious. Presumably, you get to call plays for an offense that features a very good quarterback and one of the league's best tandems of wide receivers to go with what should again...