I have probably seen him play as many times but you have some excellent points:
You say "Marius played another blinder" (hysteria) but then you say - he was pap in front of goal (we are paying for a goalscoring striker) - He has got a bit selfish (he always has been) - his team 'mates' chose not to pass to him. (very evident of late as I have commented on - they are pished off with him).
But then you say - More and more I see him as an attacking central midfielder - he hasnt got the pace, mobility, fitness etc to play in midfield - even Brew has sussed that) - value him for his asissts (3 in the SPL ALL season) - get somebody else up with Dennis for other striking options (who?).
Marius is as big a problem as many of the others that we have - SMELL THE FEcKIN MUSTARD.