Goal was obvious Carrick's mistake, no other way around it.
As for Blind, at the moment I'd play him over Shaw at LB. I was worried that he'd struggle pace wise but Jesus, if he didn't struggle against dippers defensively then I see no reason in dropping him. Shaw is getting injured more often than not and has some 'fitness struggles' (whatever that means), Blind played two very important games at LB and has done very well. He makes up for his lack of pace with his great positioning awareness and anticipation, not to mention that he's put in 6 or 7 tackles last game and had 0 fouls iirc.
Since we've got fit Carrick for the CDM then we're free to use Blind at LB, personally I don't think I'd change anything in the formation we're playing at the moment, guys took their chances right and deserve to play.