Look at it another way - we THOUGHT we had a brilliant squad last year - in fact for the last 4 or 5 years we've thought it's been very good. It WAS good enough to scrape two league titles and that's impressive, but we've hardly dominated, and we've certainly had our arses handed to us in Europe a few times.
We've had our moments when we've looked amazing, but we've not done it consistently. The reality is that despite all the money we've spent, we're just 'very good' but not world beaters.
We don't have the best players in the world either - we have some the 'best of the rest'.
Many fans love Joe, and there's no harm in that. Many love Zab, or Silva or Kompany etc but if we are serious about being one of the very best sides in Europe (if not THE best) then Joe's probably not good enough, and it seems Pep is more certain of that than I am. Zab probably isn't good enough either. Silva might be, Vinny might be if fit. But those are my opinions. Pep might even think Silva's silky skills are great, but can't work for 90 mins at the level he wants.
For all we know, he might think Aguero's a fantastic finisher but we rely on him too much and wants to replace him with a front two. It's not necessarily about any individual's skill, but of the rest players for the right job. Real Madrid's Galacticos experiment proved not to be as amazing as they'd hoped - yet it was laden with skilled players.
Pep COULD be wrong. Pep MIGHT turn out to be a disaster in the PL, we MIGHT end up worse than when he arrived, but he's the guy we've brought in to call the shots. He's widely accepted as one of the best, and we have little option but to trust him.
And what if he's right? what then. We'll look back on Joe like we do with Tevez or Bellamy and say 'they played their part' - which Joe did.
One of our legends - Shaun Goater - he's remembered for what he did for us, but we'll all agree, he'd be lucky to be driving the team bus nowadays. That's just how football is, and at the very top it's tougher than ever. Every club that's ever been successful has ditched some huge favourites, even at their peak. Toshack / Keegan / Van Nistelrooy / Ronaldinho / Maradona. Joe's not even close to those guys.
We can't keep saying 'he's done this for us in the past' - we have to ask 'what do we think he can do for us in the future' and it seems Pep's already asked that question and come back with 'not enough'.