Yes all good points. I am probably a bit old fashioned. I hate all this false number 9, sweeper keeper, ball playing centre backs etc etc. Yes the game has changed in terms of athleticism but it does seem to me people over play roles now due to the amazing barcelona side Guardiola had. It isnt really that new, look at the young LVG Ajax side or the great Milan side of the 90s they all had similar high pressing players, people seem to think Guardiola has reinvented football, utter nonsense to me.
Although technical players etc is important at the end of the day the most important role for a keeper is to save the ball, defenders to defend etc etc. Like you say Blind is decent at buildign the ball from the back but that isnt really that much help when his defending of crosses, flick ons, strength and pace have all been exploited. Out of interest, and this is out of interest not a debate, who woul dyou like us to sign at centre back realistcally as there arent many names for me personally at the moment