I'd be okay with Halpern. Didn't he play for Caps in Ovi's first season? And come back for a year at some point? (He did - I looked it up; Ovi's rookie season 05-06, and then 2011-12 (which was one of Ovi's worst seasons points wise)
What is he like 8 years older than Ovi?
Smart fellow though. I think he could fit here, and hopefully get some fresh ideas and changes (like all new coaching staff)
We shall see. Not putting all this on Lavi cause this team has been handicapped with injury and salary cap, etc,, but It was definitely time to move on and ANYTHING is better than the status quo at this point (well....hopefully)