Larry Ellison can keep Elon Musk waiting. But Morgan Stanley CEO James Gorman and a whole team of bankers need to do all they can to butter up the erratic billionaire.

In late April, as Twitter accepted Elon Musk’s $44 billion acquisition bid, Gorman sent Musk a text message to show just how much he appreciated his longtime client. “Spectacular!! You are a rocket ship,” Gorman texted Musk. “Very excited for you!”