This would be a tough trade to swallow. I have come to grips with the fact that Paul is likely done in Boston. The thing that hurts is losing Avery, I love what he brings defensively. But the truth is that Gordon has the talent to be a top 5 SG in the league and is only 24. The injury history and contract scare me but to get back to the top quickly chances will have to be taken.
Assuming that this deal would be followed by KG being traded the post PP + KG celtics would have a foundation built on.
Rondo, Gordon, and Green
Rondo when healthy is a top 5 PG
Gordon when healthy is a top 5 SG
Green should be a top 15 SF
The key would then become Sullys development and finding a defensive anchor.