Some thoughts surfaced during last night's blogcast extravaganza.

It's possible that undrafted rookie tight end Carson Butler is seriously injured.

This thinking is based upon two moves the Packers have made since Butler's injury roughly two weeks ago. First of all, the Packers have signed fellow undrafted rookie free agent tight end Devin Fieschknecht from Washington State.

And second, the Packers have moved linebacker Spencer Havner to tight end to become a hybrid type of player.

Butler sat out of the entire week of the recently completed mini-camp practices. It's possible the Packers are just being cautious with the young Michigan product seeing as training camp over a month away, but he could be more seriously injured.

Again, this is just speculation. The Packers have been mum on his injury, but in their defense, the media hasn't asked them about it to my knowledge.

Seeing as the Packers seemingly have an opening for the no. 3 tight end job, it was thought that Butler might be the undrafted rookie with the best chance of making the 53-man roster. He also had good reviews coming out of the team's post-draft rookie orientation camp.

And while Spencer Havner is in the discussion, it appears the Packers have put a lot of stock into Havner and fellow special teams maven Jarrett Bush.

Havner has been working with several no. 1 special teams units throughout the off-season program showing how much the Packers value his kamikaze like play.

They also are trying to prepare him to become a backup at both linebacker and tight end positions making him as versatile as possible. It seems like the Packers are doing everything in their power to create a job for Havner.

Same thing with Jarrett Bush. He's at his best in special teams play as he still has a tendency to give up big plays on the defensive side of the ball.

But Bush offers some of the most versatility in the defensive backfield as he can play both cornerback and safety.

So the question is, can the Packers afford to keep two players like Havner and Bush on the 53-man roster who offer key special teams play but can't offer as much in the core offensive and defensive schemes?