The Tigers want to sign Carlos Guillen to a contract extension, and he wants to stay. On Wednesday, though, assistant general manager Al Avila said there was no progress to report on a new contract for the starting shortstop. Avila met with Guillen and his wife during a recent trip to Venezuela, and spoke with him again this week. "There's a desire in the organization for Carlos to stay," Avila said as the team's caravan stopped at Oakland University. "I've talked to Carlos. He's got a desire to stay. His wife expressed a desire to stay. It's a matter of agreeing to something that both parties are comfortable with."