Would honestly be a miracle if he turns out to be anything other than a disaster. Only example I can think of of a player fixing a broken career the way Paulinho would need to is Thiago Silva. And he was much younger when he did it.
The hype train will start immediately because the expectations are absolutely rock bottom. Even a single pass will be applauded.
Btw. Some 1,5 million people watched the "highlights" from his 5 minute debut.
Boss
I laughed towards the end of that alaves game when the likes of rakitic refused to pass to him when he was in a good position only to sky a shot over the bar. Rakitic you've done fuck all since 2015. Rakitic has been doing the same thing to semedo since he joined.
Also pique could have easily laid it off to him and he'd have his first goal already in a cameo performance. The dick of course tried a difficult shot when it was the worst option. These players are too far up their own ass even though they've been off form for over a year now.