I would say it's like moving a fairly quality tenant away from a dying mall into a neighborhood shopping plaza with a little more foot traffic.If the issue is that KROQ's numbers suck and have for years, then I don't know how bringing a guy who people weren't listening to at the competition to your station helps (no offense to Stryker, it wasn't his fault, but...).
I don't think it'll necessarily help the station gain an incredible amount of traction, but it'll definitely help preserve KYSR's lead over KROQ in the afternoons and carry a lot of favor with advertisers/P1s, which may help revenue.
I think it's been mentioned in this thread that afternoon talk shows have definitely helped some rock stations. I think this show is very music-intensive, but I think it's worth the risk for KYSR.