It could mean one of two things:
1. The team is concerned about Petty's development, or
2. The team is using the Wolf strategy of drafting a QB every year until you hit on your franchise QB.
Remember, Woody brought Wolf in to help in the GM search, so that may play a role here, as well.
At this point, do what it takes to get that franchise guy. I personally would rather them give Petty another year before drafting a QB to see, if he doesn't have by now then maybe another year will work but I totally understand if they see it a different way. Just get it done PLEASE!