Revolving door on the "The Talk" continues to swing. Sheryl Underwood on her way out after 2 weeks?

After the firings of fan favorites Holly Robinson Peete and Leah Remini, "The Talk" debuted with new co-hosts Molly Shannon and Sheryl Underwood 2 weeks ago. Neither Shannon or Underwood were "permanent" co-hosts, but both were hoping to land permanent spots. So it was understood that Shannon & Underwood were on a tryout basis. Well the tryout didn't go so well for Underwood or last long. My source at CBS tells me that she is no longer a regular. "Julie strikes again!" was how my source put it. Sigh. What's next? Will Molly Shannon or Kris Jenner last & become permanent? Only one person knows for sure. And Ms. Chen has EVERYONE walking on thin ice......