"A BAs/PMs can reach the conclusion that a private label implementation (or 3 of them, with some outsourced integration work outsourced to competent integrators) is a much better solution, whereas a programmer (with any ingrained survival instinct) is unlikely to say "you need to fire me and all my team, and outsource this", or even think that, regardless of how true it is."
Ah, but that's management at a consultant-level - you can hire an external consultant to do that for you. A company (or at least I wouldn't) won't hire PM/BAs as permanent employees to do that kind of stuff - particularly when you need independent advice - BA/PMs also have survival instincts, you know - they will always insist on "project management" regardless of how trivial the task is - if their job is at risk.
(I think the quant vs developer example is an exception - the marginal returns for a bank investing in desk quants is more than that for investing in devs - although what's the critical ratio is something hard to determine)
Ah, but that's management at a consultant-level - you can hire an external consultant to do that for you. A company (or at least I wouldn't) won't hire PM/BAs as permanent employees to do that kind of stuff - particularly when you need independent advice - BA/PMs also have survival instincts, you know - they will always insist on "project management" regardless of how trivial the task is - if their job is at risk.
(I think the quant vs developer example is an exception - the marginal returns for a bank investing in desk quants is more than that for investing in devs - although what's the critical ratio is something hard to determine)