"How quickly do you anticipate he would step down?"
Who knows? The CEO declaration to others of the wish to retire was >2 months ago, should have and could have happened that week. Every week since has been further deterioration, making a successful turnaround more difficult and total implosion more likely and closer. Time will tell, success and wealth for all shareholders, including the Whelan family or penury and public shaming, as the start-up guy of BioElectronics with Founder's Syndrome who couldn't get out of his own way and hoped for a miracle for too long until the door slammed shut!
Very, very, few start-up guys are good leaders, motivators and managers for the long-haul and prudent build of a successful company. That's why the wealthy ones let others take the baby and carry them to great wealth. In this case, the guy actually, foolishly believes he can do it all. Imagine that kind of blindness, not to be able to see with objective clarity that it is not about your baby coming down the birth canal, it is only about making deals, sales, profits and increasing shareholder value!