An unpopular opinion, but yes we do. This is the curse of attempting to be great. BArcelona did not need a new CD when they went and brought back Pique. Chelsea did not need a new CD when they went and bought David Luiz. What these guys have is that special talent that complements an already in place ferocious superstar defender in Terry and Puyol. And there are many more similar examples with all the great teams.
Lescott is capable, but he is not excellent at what we would need from his position. If you are unsure of what I am taking about, go and watch an Ajax match and see what Jan Vertonghen does for them. You will understand. It is not the defending (that he is the minimum) it is the skill, intelligence and ability with the ball at your feet that we need.
And no matter how many "Lescott was excellent today" comments we here, he'd never provide this quality for us. Yes he can defend, but then again so can half the CB in the league. Dunne can defend (perhaps even better than Lescott) Bamba can defend, Distin can defend (with mor speed and athletism), Cahill can defend (even more aggressively). Shawcross, Johnson, Hangeland, Collocini, Tamas, Jageilka e.t.c. can all defend.
But we need more where we want to go. And we can get it at a reasonable price. Jan Vertonghen is a great example of what we need, and I prayy we get him. If we do, most of you would thank your stars this wasn't your decision to make after-all :)