You could argue they're spoilt watching Messi and Iniesta. The point stands he'd probably be our most creative player. He plays deep and likes to spray it around but can also do a job further forward. He's not David Silva but he'd be an upgrade on any of our current options. A good substitute for Gibson in my mind but with a bit more mobility and flexibility.
The Clev is more creative mate.
I understand your point, we have a side that lacks creativity, but Sergio Roberto is not the answer.
Its like wanting a coffee and settling for tea.