Dirk is one of my favorite players ever. Top 25 guy all-time, in my book.
Do me a favor and don't suggest that David Lee is in any way comparable.
Not so much anymore, but Dirk was for most of his career a guy around which you could build a great offense.
Lee is a productive complementary player who puts up big counting stats if you give him extended minutes, but he's never been any good as a featured player, and arguably takes away as much as he gives you due to his defensive issues.
Nobody is signing with our team just because we acquired David Lee. He's a respected veteran around the league, and I'm sure most guys would be happy to play with him, but I don't think anybody looks at our team now and says, "Man, I could really go far with David Lee and Isaiah Thomas by my side!"