Ferguson would have been off to Germany or Italy for sure. Plenty of clubs from continent starting to look at LOI players more and more.
Jack Byrne is probably the only realistic LOI callup for the foreseeable, as he is definitely starting to find form again. He's still the kind of player we really lack in an Ireland jersey too. A bit of creativity in unlocking defences is sorely lacking.
Chris Forrester might have been an option a couple of years ago, and probably should have got a cap when he was doing well at Peterborough, but Hoolahan was still an option then in a similar role, so it's understandable why he didn't. His time is probably passed now though as he turned 30 in December past. A pity though, as he's very much in the camp of 'what could have been'.
Whatever about Azaz, as I don't know an awful lot about him if I'm being honest, but Mandriou couldn't lace Byrnes boots when they're both on form. I don't see Mandriou going beyond a lower level Championship player.