YMMV, but with a larger operation having the CEO get involved in customer engagements that don't mean either closing a big sale or ensuring one isn't lost causes most clients to assume the CEO is their buddy.
This means he's now their go-to guy for the most trivial of issues. Besides being a PITA for the boss this also effectively neuters the account team. Not ideal.
This means he's now their go-to guy for the most trivial of issues. Besides being a PITA for the boss this also effectively neuters the account team. Not ideal.