If the Bears had picked 15th and the Seahawks 19th, it's possible Irvin would be a Bear and McClellin would be a Seahawk.
They were two of seven outside pass rushers taken in the first round. If NFL teams were re-drafting those seven pass rushers today, this is how they might come off the board based on how they have performed as rookies.
1. Chandler Jones. He went to the Patriots with the 21st pick and got off to a great start with five sacks in his first six games. Jones has been a starter from day one and a very good two-way defender. At 6 feet 5, 260 pounds, Jones is the biggest of the seven, and he has used his length and power to his benefit.
Scouts say he has been surprisingly consistent and disciplined in his play.
2. Bruce Irvin. A designated pass rusher with the Seahawks, he leads this group with seven sacks, and he has had opportunities for more but has not been able to finish some plays. He is all about speed at this point and isn't close to being a complete player.
"He still is very raw," one front office man said. "He still is learning how to use his hands, get blockers off balance and convert speed to power."
Another front office man said almost all of Irvin's sacks have come when he has been unblocked, and said he struggles when he engages in contact.
But, he added this, "He has incredible speed and instinct to get the passer."
3. Shea McClellin. He has three sacks as a rotational player and has given the Bears a dimension they lacked in edge rush and pursuit. It is worth noting the Bears' worst pass rush performance of the season came on the road against the 49ers, when McClellin sat out with a concussion.
Coaches are pleased with how he has progressed.
Said a front office man: "He is good rusher. He's instinctive and plays hard. He's not real strong in the run game. I think he'll be a good player, maybe not a great one. He has been better overall than Irvin, but Irvin has been more disruptive."
Playing outside linebacker in a 3-4, Mercilus has three sacks, two of them in one game. As with Irvin, much of Mercilus' production has come off stunts.
5. Melvin Ingram. He showed some potential in the preseason but has not had many opportunities or made many plays in the regular season for the Chargers. Chosen one pick ahead of McClellin, Ingram still is figuring out how to play outside linebacker.
Two execs from other teams said they believe Ingram still will emerge as a fine player.
"I was afraid of drafting him because he was up and down at North Carolina, and he has been the same way with the Jets," one talent evaluator said.
The 28th pick was feeling his way while learning to play outside linebacker in Green Bay's 3-4 scheme. Two front office men agreed Perry has played with good power but hasn't shown much of anything as a pass rusher.