Is Trump's house of cards falling ?

A measly 3 mil in May, with a lousy 1.3 mil on hand. Corey L is out. Is Trump's organization failing ? 

It certainly looks like he's floundering. Stalling out. No money coming in, no operating funds coming from Trump. For a billionaire he's certainly being penurious with his cash, assuming he really has any. So what's Trump's next play ? The cash he has on hand isn't enough for another month's operations unless he minimizes everything. So what's he going to do ?
Meanwhile, I see that there is an "insurgent" group of GOP delegates who are working toward exempting themselves from being bound to vote for Trump in the convention.
According to The Rachel Maddow Show 
there is a move on by some within the delegates to add a rule in the convention rules to allow delegates to not vote for a candidate based upon what amounts to any conscience reason.
So we have Trump with no money, with Delegates plotting to desert him, and what next? 
Trump will market himself and his book, make sure he gets enough campaign contributions to pay himself back for the 45 mil he loaned his campaign, and then what ? quit ? I think he'll flame out well before the election. He'll be the Michael Dukakis of the GOP. But, am I indulging in wishful thinking ? Perhaps.
Myself, I saw the choices as being Hillary Clinton or John Kasich.
I guess I was half right.