Seriously, looking back at the DT/MP split nine years ago, he could've started a DT-ish prog metal band with a great lineup around then (I still remember when he announced he was going to work with Russell Allen, and then...

) and pour all his effort into it, and the story now could be very different. Just look at where Haken is now after 10 years of giving it all they got and not being discouraged by not seeing inmediate success at first. And I'm sure there are better examples out there.
And I get it, though, at that time he was burnt out from the DT cycle and wanted to spread his wings doing a lot of different things instead of building a new "big" project from the ground, but IMO the biggest flaw there is that it only works for so many years. He could've started a couple side projects for the first couple years, and then focus full time on a main gig, but that main thing never came and he went all in on the "let's saturate the market with MP releases lolz" approach to the point where now, as Adami was explaining, pretty much all of his bands are side projects, both for him and for most of the other members. On top of that, many of the people he works with are shared between these different bands (Neal Morse, Billy Sheehan, the guys engineering and mixing the albums, etc) which narrows the reach of the projects even more by making them way too similar sometimes (Breath of Angels sounds just like Peaceful Harbor, Love Letter sounds similar to The Ways of the Fool, and TWOTF's instrumental section is pretty much the same as Black as the Sky, to name a few).
To be fair, A7X was his choice at first, like Bosk was saying, but it obviously didn't play out the way he expected it to be. I think the idea of joining a well stablished band and using his arranging/production skills fully in that band would be another good option for him to consider, given where Mike's professional career is at right now. The problem there, tho, would be to find a big enough band that needs a drummer and that is satisfying musically for him to stay, and there's not many bands that'd fit that criteria out there. And it's not like he could go solo and just tour with a bunch of no names either, unless they are pretty good writers too, because MP isn't exactly a songwriter by himself. He needs good songwriters like Morse, Petrucci, Rudess, etc.