Verbal offer, do i continue to do job interviews?

Hello everyone! I am curious about how to go about having a verbal job offer, with a start date of next week while also having other comapnies calling about setting up interviews? Do I set up others i

Hello everyone! I am curious about how to go about having a verbal job offer, with a start date of next week while also having other comapnies calling about setting up interviews? Do I set up others interviews, sign my offer letter at job i'm supposed to start, then email back the interviewers telling them I'm not longer interested? I appreciate any insight. tyia