Bill Bowlen argues three members of the trust have failed to uphold his brother's wishes for the team.
Denver is coming off its worst year since 2010 and has not had back-to-back losing seasons since the 1970s.
The wife of Denver Broncos owner Pat Bowlen says she has Alzheimer's, a disease which led her husband to give up control of the team four years ago.
The team announced the temporary name change Wednesday following a vote by the district that oversees the taxpayer-built stadium.
Bowlen Wallace said in a statement that it is her desire to “lead this team with the same passion my father did and help the Broncos become Super Bowl champions again.”
While NFL players who have supported kneeling in the past have not revealed their plans for this season, it is unlikely the new policy brought an end to the controversy.
“I’m unemployed. I’ve got a couple of ads in the paper,” Manning joked.
The miracle season spawned a generation of die-hard Broncos fans and ignited a civic pride in Denver.
Questions about coaches and quarterbacks headline the issues needing to be dealt with this offseason after the team finished with a 5-11 record.
Stereotypical masculinity in football, Derek McCoy says, can lead to “violence towards self and violence towards others."