Reiss hits on Patriots' moving parts

ESPNBoston.com's Mike Reiss was on the Scott Van Pelt Show on ESPN Radio today to talk Patriots (listen to the podcast HERE). The following topics were addressed:

* Wes Welker's reduced role and theories why.

* How different is the Patriots' offense without Aaron Hernandez?

* Kellen Winslow's potential impact.

* How much of a concern is the offensive line?