Laudrup won a league cup vs Bradford.
Everywhere he's managed he's been given the sack for having his teams develop cliques, infighting, and being impossible to work with- they hired Gary Monk from within the playing staff after the man ran off to Paris for a chill during Swansea's most horrific patch of form.
Rijkaard meanwhile hasn't managed since 2013. That was with Saudi Arabia. Prior to that he had one bad season with Galatasaray. He did well with Barca but that was circumstantial more than anything- i mean, they got rid of him eagerly despite him winning the champions league.
Better alternatives to Martinez are very very very very scarce at the moment. If someone better was available then its a definite consideration. But to me that I think that this is just part of him developing as a manager. Not that he gets a free pass. I mean he basically needs to win the Europa to get any credit out of this terrible season. He won't survive a league run like this next season. Not a chance.