I think the ORD engine loss is instructive here re: 447. It may not seem so, but the AA pilots were doomed by something irrelevant to their predicament. Procedure. GB puts it well, the FO had a handle on the situation, ostensibly, and if something is flying, and something bad has happened, change is not always good. Many perspectives are served by what if. FO had the power on his side, the control, and had some stasis. Other than SOP, why would the Captain takeover? With 447, the same possibility presents itself. duBois may have been alarmed at a too steep deck angle. With engines perhaps hushed, that would be an eerie concern to have, returning to a cruise cockpit. Perhaps he takes a grok at the panel, hears the cavalry and the lady, some bells, and figures, "Let's have a talk with the lads."
Then-AA policy sounds outdated, a Captain can (should) accept a peaceful "mutiny" when things are stable in the weeds?
3holelover. point taken, and a good one, but see Graybeard. It still occurs to me that the Captain had a foot issue at changeover, (possibly), perhaps even due to "SeatBias". Not command, but an ergonomic thing.