In my opinion, there are several teams this team can't beat.
It's encouraging to have some quality wins against a Randolph-less Memphis team, a free-falling Orlando team and a hot Indiana team (despite them beating us twice earlier this season).... but none of those teams are actually contenders.
So far this season we've lost to Miami, we've lost to Chicago, we've lost to Dallas, we've lost to Oklahoma City... and we haven't even played the LA teams. Sure... in THEORY you can beat any team at any given time... but in my opinion we can't beat a contender in a playoff series.
Not until a starting center drops out of the sky, at least.