PHILADELPHIA (973espn.com) - With the No. 1 defense in the NFL looming in the NFC Championship Game, Eagles offensive coordinator Frank Reich isn't ready to think about Music City just yet.

Reich's name has surfaced as a potential head-coaching candidate for the Tennessee Titans after that organization moved one from Mike Mularkey earlier this week.

An NFL source confirmed to 973espn.com that Mularkey was offered an extension by the Titans but only if he fired his offensive coordinator, Terry Robiskie. Once Mularkey refused to do that he was let go.

Titans general manager Jon Robinson wanted a better quarterback guru in the organization to help develop Marcus Mariota, who took a step back from a personal perspective this season even though the Titans ended a lengthy playoff drought.

Reich, of course, is part of the triumvirate -- along with head coach Doug Pederson and QB coach John DeFilippo -- given credit for the rapid development of second-year signal caller Carson Wentz.

Robinson, a former Patriots executive, would have had significant interest in New England offensive coordinator Josh McDaniels but McDaniels has a deal in place to become the next head coach in Indianapolis after the Patriots' season is over.

Reich will not have an opportunity to talk with the Titans until Monday after the NFC title tilt against the Minnesota Vikings and insisted he has no time to think about the future as he prepares for the game.

“You know what, right now, myself, our staff, are interested in one thing only,” Reich said. “So, that’s all. I have no time. When I tell you I have no time for anything to consider anything else other than how we’re preparing a game plan to beat the Vikings, that’s really all we’re concerned about.”

Others on the Titans shortlist are reportedly Texans defensive coordinator Mike Vrabel, who shares a New England history with Robinson, as well as Panthers defensive coordinator Steve Wilks.

Eagles quarterbacks coach John DeFilippo could also get into the mix in Nashville and is likely going to be getting a second interview for the head coaching job of the Arizona Cardinals as well.

No matter what happens on Sunday Reich and DeFilippo will be able to speak to potential employers next week,

“I honestly have not thought much about it,” Reich said. “I want to stay focused. I learned that a long time ago. Just enjoy the people and the process that you’re in. I love it here and I love where we’re at. We’re doing a pretty special thing right here and wouldn’t want to be anywhere else.”

-John McMullen covers the Eagles and the NFL for 973espn.com. You can reach him at jmcmullen44@gmail.com or on Twitter @JFMcMullen