1. Jordan had Pippen
2. Jordan had Rodman for the second three-peat, which was more than sufficient to compensate for the lack of dominant big man
3. Jordan always had solid role players and defenders around him, who could be counted to play hard and make shots. Just one forgotten example - Steve Kerr is the all-time career 3-point percentage leader. It's not a coincidence that many of those players later went to the Spurs or the Lakers and won rings with them too.
You will never see me making the argument that Kobe is on the same level as Jordan, but the facts need to be properly appreciated - Bynum did not have a bigger contribution to those titles than Luc Longley did for the Bulls, and Lamar Odom, Trevor Ariza and Shannon Brown were key players for those championship teams and you can see where and how they are playing now... It's not comparable at all - those Bulls teams had a lot more talent than the Lakers between 2008-10