>Entice client in with the most senior person with the impressive resume. Assign someone else to do the actual work

That's not "Bait-and-switch"

That's smart business

The "most senior person" (or, more likely, team) is still available - they're just acting as an escalation point, not doing grunt work

Same basic concept as having a secretary to do the [necessary] grunt work of any specialized employee/team

You don't send Babe Ruth to fetch foul balls, you send Babe Ruth to hit homeruns

But without the ball boys going for fouls, Babe Ruth doesn't get to hit as many, or as fast