"It was a tough decision, obviously," Meninga said.
"We feel that at this point Michael is the best option; he plays more positions - simple as that.
"From a team perspective we thought Michael was the best option."
Morgan was seen as the ideal option for a new-look Queensland backline that will feature debutant Dane Gagai. Newcastle's Gagai slots into a backline reshuffled after fullback Billy Slater's season-ending shoulder injury.
Greg Inglis moves to fullback with Will Chambers filling his centre vacancy and Origin rookie Gagai on the wing.
Canberra giant Josh Papali'i was named as the bench forward replacement for Broncos prop Josh McGuire (Achilles). He played the last of his three Origins in game one last year and his experience edged out contenders Korbin Sims, of the Newcastle Knights, and Sydney Roosters enforcer Dylan Napa.
"Josh's experience got him over the line. He understands what Origin is all about," Meninga said.
And he dismissed concerns for wing Darius Boyd who suffered a groin complaint in Brisbane's NRL win over Newcastle last Friday night.
"It has settled down really well," Meninga said. "He will be right to train probably [on] Thursday."
Qld Origin III team
Greg Inglis, Darius Boyd, Will Chambers, Justin Hodges, Dane Gagai, Johnathan Thurston, Cooper Cronk, Matt Scott, Cameron Smith (c), Nate Myles, Aidan Guerra, Sam Thaiday, Corey Parker.
Interchange: Michael Morgan, Josh Papali'i, Matt Gillett, Jacob Lillyman. 18th man: Edrick Lee.
- AAP