Don Mattingly

Dodgers Manager Don Mattingly, right, speaks at a news conference while sitting near Dodgers General Manager Ned Colletti on Monday. Mattingly is not happy with his current contract situation with the team. (Al Seib / Los Angeles Times / October 21, 2013)

Another potential source of contention came to light when Mattingly was asked if he wanted to retain his entire coaching staff.

"If it was up to me," Mattingly said in the affirmative, folding his arms and looking away from Colletti.

Colletti was asked if he felt the same way.

"We'll talk about everything internally," Colletti said.

In other words, no.

But Mattingly is in a box. Because he's under contract for next season, he can't simply walk away and manage, say, the Washington Nationals.

There are only two peaceful resolutions here: Kasten has to sign Mattingly to a multi-year deal or fire him.

Anything else and the Dodgers are asking for trouble.

dylan.hernandez@latimes.com

Twitter: @dylanohernandez