Seriously? Vidic was a rock at Spartak and his national side. He was courted by the likes of United, Juventus and Fiorentina. Jaap Stam was a year away from becoming the world most expensive defender. Evra had been courted by the top clubs for 1-2 years. All of them were available for their clubs and dependable for more then 10 games at a row something Jones, Rafael and Evans hasn't been for quite some time.
Its time we get rid of the red tinted glasses and make some decisions. These players may be the combination of Maldini, Blanc, Rio and Baresi (which they are certainly not, in fact they are nowhere near to world class defenders) but unless they are available then its pretty pointless to keep them. Now considering that we can expand the squad to an unlimited size due to logistics and financial restrictions then its time to make some painful decisions. We cant go on relying on kids and wingers while fantasising on how magnificent Rafael would have been against City, how frightened would Aguero have been if he faced Jones and his face expressions and how distracted would Toure have been whenever Helen Evans cheered her husband up.
BTW as said before, a player is young at 17-19. At 23-24 he's heading towards his peak. I can make a long list of defenders who were simply great at that age. Our defenders can hardly stay fit for 2 games at a row.
Vidic was courted by United, Juventus and Fiorentina. Smalling was courted by United, Arsenal and others. Jones was courted by United, Liverpool and others. The only real difference is that Stam/Vidic/Evra had 2-3 extra years of making all their mistakes and getting over niggles in a crappy League, before moving to us.
The painful decisions you refer to I've outlined above. We either piss £150m on 5-6 quality defenders (4 central defenders, backup LB and a RB), skimp on the price and potentially end up with a few Squillaci's which are just deadwood or make some sensible changes. The sensible changes are to keep the player's who have shown enough to suggest we shouldn't write them off (Rafael, Jones, Smalling), move the player's on who haven't fulfilled their potential (possibly Evans) and add a player or 2 in their place.
Unless you have some certain strategy to bin Smalling, Evans, Rafael & Jones and replace them with 4 top quality player's who won't be injured, won't be a massive risk/hopeful punt and won't cost our entire budget for the next 18 months? In a World where Coleman would cost us £25-30m I'd love to here this strategy if you have one.