I thought Alcaraz was brought in as 4th CB, that extra player we need to make numbers, then only Stones replaced Heitinga as our 3rd CB as we weren't able to sell him. I think Martinez wanted Martins Indi if we would be able to sell Heitinga as his replacement. Lescott would seriously be a good option for us, especially as we need to spend money way more importantly on a top striker and a really good left winger. Lescott can still play for 3+ seasons, and as Barry's example is showing, Martinez likes older players too. And we probably won't have money to buy a really good centre back like Rakitsky or Martins Indi. Maybe Vermaelen could be a good option.