If Pereira is that unpopular at Porto why would they want to let us have any of their players and why would they follow him to Everton? I'd want to know a lot more about him before I thought about letting him have the reins at our club.
I don't see the attraction of Martinez. Going back through his time with Wigan:
11/12 They only won 1 of the first 12 matches, including a 9 game losing streak. They lost 4-0 to Arsenal and 5-0 to United.
10/11 The lost 4-0 at home to Blackpool on the opening day and then 6-0 at home to Chelsea. Man U and Sunderland also put 4 past them.
9/10 They won just 3 of their last 20 games of the season. The following teams hammered them: United 0-5, Blackpool 4-1, Arsenal 4-0, Portsmouth 4-0, Spurs 9-1, United 5-0, Bolton 4-0 and Chelsea 8-0.
He's had so many whoopings that it can't be down to coming up against a team in form or individual errors. It has to be something more fundamental in the way he coaches his side.