Sure it would. In fact, homegrown terrorist cells are probably soliciting bids from terrorist motherships like al-Qaida and Iran. Think of rival movie studios bidding on a script that's sure to be a blockbuster. In the same way, promising terrorist cells will be sponsored by the highest bidder.
"In fact, homegrown terrorist cells are probably soliciting bids from terrorist motherships like al-Qaida and Iran."
The former being far more likely than the latter IMO was my point, I wasn't saying that there was no external assistance.