Not really, from the moment they own a club they can't let it fail, there is a matter of pride. That's why from the beginning it was a better idea to spend less than 100m when purchasing the club and then spend a billion in the team. Regarding the PL, it was probably best to not be in the same league than Abu Dhabi, they hate each others and would have gone as far as possible to one up each others, which is counter productive when the all thing is supposed to be about business. Now the rumour is that the only expensive club that they were willing to buy was United but after talking to intermediaries, they decided that it wasn't worth it to pay what the Glazers wanted.