If the source of truth is users, Agile is great for helping the team continuously develop understanding of fixed user needs.
If the source of truth is executives, needs are NOT fixed. Execs constantly change their mind.
But understanding of users can only improve. Exec-driven development is always at risk of being flipped upside-down.
Exec-driven development is extremely hostile to experiments. The HiPPO told you what to build, just build that. Don't ask questions.
Agility under HiPPO rule doesn't look anything like agility for user-facing development. Teams are only thinking about making it easiest to keep up with exec flip-flopping.
But execs don't want architecture, they want UI!
This is when the org expects designers to contribute. We don't need testing or research since the exec decided that already. Here is the BRD, draw us some mockups.
The only way forward is to take on that risk.
Your users: management. Their goals: make money. Unknown: their mental model around converting features into value into money.