Kel Mitchell, who appeared in Nickelodeon’s hit shows All That and Kenan & Kel, has spoken out about Dan Schneider, who has been accused engaging in unprofessional and inappropriate behaviors in the workplace. “The vibe of the show started to change a little bit,” Mitchell, 45, said when Schneider took overAll That from original co-creator Brian Robbins, who “started to do Varsity Blues and all these different movies and the production team started to blow up, so they left.” “They left us with the head writer, Dan Schneider. So he’s writing, and me and him kind of bump heads a little bit,” Mit…
