I think it's impossible, unless he is the head coach which would make it a slim chance. A P5 offensive coordinator job is probably his fastest route back to a P5 head coaching gig, vs being the head coach at a rebuilding independent. He's probably looking at a minimum 2-3 years before he could get back if he were newly hired to rebuild UConn, with the potential to have it take longer if he doesn't win enough, vs. spend a year as a coordinator and be at/near the top of a lot of lists next year...
Playing out the 10% odds that he'd entertain the offer... while Edsall has no buy out, Moorehead would still need to sign onto a a significant contract (as he'd want at least 5 years with low buyouts on his end) and see a significant increase in the pool of pay for his assistants. Even if he took a discount.. Moorehead's deal as a head coach would almost certainly have to be more money than the entire salary pool for the UConn staff currently... and he'd probably want to double that assistant coaching pool. The athletic department has shown no inclination to be willing to invest that level of support into the program.
Sure it's worth reaching out and asking "would you be interested," but I'm not holding my breath