One of my theories is that there are stand in Brandons. If the "real" Brandon is in the WH residence, and a stand in pulls up at the WH gate, it's pretty obvious to a lot more people. Even if a stand in shows up in "civvies", he still has to go somewhere in the WH to be made up. If Joe Schmo from bum row walks in to the make up room, and POTATUS Brandon 2.0 walks out, welp.
If the stand in goes to the comms set, though, there's no WH check in. A stand in, then, could enter in "civvies', get made up, and be sent via a private tunnel to the set. If, for even more believability, they put the "real" Brandon in a tunnel at the WH end, and shunted him off along the way, then timed the stand in to come out of the tunnel at the set end correctly, the only people who would really know what was going on would be he SS detail.
It would explain the flubs, too, like Brandon telling Jared Schmeck that he had a son and a grandson named Hunter. Jill is there to fix the flubs, if she can. Have to figure whomever was controlling the delay can't know every detail of Biden's personal life. That's why I think team Brandon can't risk ad-lib questions. Namely, the stand-ins could never know all details and would get lit up by factcheckers if they tried to bullshit their way through more personal type questions.
With the Schmeck call, "Let's go Brandon", should have never made it past the delay. It sounded to me, watching the video Schmeck posted of the conversation from his end, like a 3 second delay. Jill was the real screw up on that call. She should have been all over Jared as soon as he said, "Let's go Brandon", as an outraged wife, and it should never have gotten to the point where Brandon answered. I'm thinking it may be a situation where every syllable is so choreographed that Jill wasn't expecting the comms team to let anything potentially damaging through, and just wasn't prepared for it. IOW, she fucked up, she trusted them.
Could have been the ultimate Q team troll, too. Jared seems pretty sharp. He climbed all over Brandon's grandson flub, forcing Jill to step in. The picture posted of Jill and Brandon at the 17th St. and Q Ave. tree, was that before or after the call? Stuff like that doesn't seem like a coincidence to me. Was there a team Brandon retaliation?