Yes, we need more defense to be a contender. Just getting a defensive big does not make us a contender, a TRUE contender. We also need depth. We have none. Billups (or CP3), Melo and Amare + a bunch of minimum salary players (defensive or not) is not enough. So look for us to be a 4th seed (maybe 3rd seed) 2nd round playoff exit for many years to come unless both of these issues are addressed.