Chuck Pagano and Ryan Grigson will be paired together for four more years in Indianapolis.

Colts owner Jim Irsay announced Monday at a hastily-called, late-night news conference that he had given his coach and general manager contract extensions.

Pagano, the 55-year-old coach, received a four-year deal to replace the expiring contract that prompted speculation he could be ousted Monday. Grigson got three years added to the one year he had on the original deal he signed in 2012.

Financial details were not immediately available.

Pagano led the Colts to the playoffs in his first three seasons in charge, losing in the 2014 AFC Championship Game. But plagued by injuries, including to star quarterback Andrew Luck, Indianapolis went 8-8 this season as Houston won the AFC South.

Also still employed

Detroit left coach Jim Caldwell in limbo, a day after the Lions won at Chicago to finish 7-9 in his second year.

The Lions have been searching for a new GM since firing Martin Mayhew in November and will begin interviewing candidates this week. They plan to let the new GM decide on Caldwell's fate.

• Mike McCoy will remain Chargers coach despite a 4-12 record this season and a 23-27 mark in three seasons. The next question is if he will be coaching them in San Diego or Los Angeles. The team formally filed for relocation Monday, along with the Oakland Raiders and St. Louis Rams. NFL owners meet next week.

• San Francisco CEO Jed York is retaining Trent Baalke with the idea that the general manager will hire a new coach and turn around this once-proud franchise in a hurry. York made the announcement that Baalke, a Bemidji State graduate, would stay a day after firing first-year coach Jim Tomsula.

Etc.

• The first step in Miami's latest round of offseason changes was settled quickly, when Chris Grier's promotion to general manager was finalized. His first task is to help the Dolphins find a coach. former Atlanta coach Mike Smith interviewed for the job Monday, and Mike Shanahan will get an interview Tuesday.

• Carolina cornerback Charles Tillman tore the anterior cruciate ligament in his right knee, an injury that will end his season before the playoffs begin and could end his career. Tillman turns 35 in February, and his past three seasons have been shortened by injuries.