I was at the Armory in January when he ran is first race back. He made a tactical error on the last lap (which he admitted in interviews) but, honestly, he looked pretty good for a guy who had been off with injury, surgery, and such. 1:55.02.
But, it's 3 months later and he's running about the same--1:54.17--this time outdoors.
He's being coached by the same guy who had Leo and Robby. It does NOT add up that Vig can't coach middle distance. Just like Tyson Gay's progress is not what he originally expected with recurrences that have caused him to take things slower, I have to believe:
(1) Alan is not healthy or his physical condition is restricting how he can train; or
(2) Vig is intentionally taking things cautiously to avoid a recurrence, and Alan doesn't like the lack of progress.
You would have to be in his camp to know what the situation is, but even if he will never be able to get back to 1:43/3:30/1:46 (which is what I think), the progression we have seen so far does not make sense for a 100% healthy athlete. I do NOT think he's 100%.