There is no such thing as a "Trump delegate". Delegates are selected by the state party organizations and are usually party officials and big donors. They are pledged to vote as per the primary outcome on the first ballot. After that, it's whatever the party wants. Trump is not popular with the party regulars and I suspect that if he doesn't win on the first ballot he has no chance at all on the second.
“Trump is not popular with the party regulars and I suspect that if he doesn’t win on the first ballot he has no chance at all on the second.”
On that point I agree with you 100%. But Cruz is not exactly Mr. Popularity with the same party bosses (and hacks) that you noted are appointing a lot of the delegates.