The person spoke to The Associated Press Monday about Manning's meeting with the Titans on the condition of anonymity because the location and time of that meeting remains confidential.
Manning has plenty of connections to Tennessee.
He starred at the University of Tennessee, leading to his first name becoming a popular choice for newborns in this state. His wife is from Memphis, and Manning already knows the Titans' facility a bit, having practiced against Tennessee a few years ago when the Colts came to town for some joint practices.
Munchak also was a teammate of Archie Manning in 1982 and briefly in 1983 with the then-Houston Oilers. Munchak just hired Dennis Polian - son of former Colts general manager Bill Polian - as his assistant.
But the biggest key is Adams, the 89-year-old billionaire who wants back in the playoffs. His Titans have been only twice since 2004 with both trips in 2007 and 2008 lasting only one game each. A meeting with Manning could come in Houston where Adams still lives after relocating his Oilers to Tennessee in 1997.
"I want Manning," Adams told The Tennessean. "I'd love to see him in Titan blue after watching him so many years with the Colts. ... I want him. I am ready to do what it takes to get him aboard, and I think he'd be the guy to get us into the playoffs."
He was expected to be heading back to Florida, but did not show at the Dolphins' headquarters Monday despite reports he would meet with the team.
A media stakeout at the complex began when a local TV station camera crew arrived at 4 a.m. Half a dozen TV cameras and a handful of reporters eventually gathered across the street. They weren't allowed on the team's property, but a Dolphins official brought out water, pizza and napkins.
Curious motorists occasionally pulled up to ask for an update.
Manning spent nearly 6 1/2 hours at the Arizona Cardinals' headquarters and training facility on Sunday in meetings designed to lure the superstar to the desert.
The session followed a meeting of nearly six hours Manning had at the Broncos' facility in Denver on Friday night. The two sessions were evidence that, for the time being at least, Arizona and Denver appear to be the top two contenders.
AP Sports Writers Steve Wine in Miami and Bob Baum in Tempe, Ariz., contributed to this report.