SNET's broader problem is they never give people time to get comfortable in their timeslots. Hosts one likes or dislikes is subjective, but they change things up too often. I used to listen to it all day years ago and remember it going from Landry/Stellick through Hogan through Hockey Central to Swirsky to McCown. All of it wasn't for everyone, but you knew who'd be on each day at what time.
I don't mind Marek's show and it's up against nothing so it will likely continue to do well.
Can't see Kypreos/Borne being an answer to Overdrive given how hockey focused the latter normally is in-season too. Things kind of went off the rails for SNET when they sent Tim and Sid to TV because to was just as a theme/brand a really good entry to Prime Time Sports. McCown had run his course at the end - especially given his salary - but they never had anyone to replace him (TV on radio? Yeesh.) Overdrive swept in and that was that. Overdrive isn't for everyone, but it's self-deprecating, the hosts have chemistry, and has an actual following.