"What I need somebody to do, really, is say look, you must bring in at least £x every year in funding, and you must publish y papers every year, as a rough guide. But they simply won't be clear and specific. And even when they have, they've changed their mind and then implied that I am the one who is somehow lacking for not realising what they meant all along. Or a different senior manager says totally the opposite."
Buffy I wish they would say this too. But no, it leaves more room to, erm, be flexible about who can be promoted. 