I think there are many reasons for decline of participation. We can't blame Jim for everything.
Perhaps we need another call for candidates. It would be great to fill as many BoD positions as possible via 'normal' election process, then seeking out participants to fill empty slots via meeting-based voting. (IIRC - that is how a membership slot was filled several years ago.)
As a club, we have to continually ask "where do we see this club in 1-2-5 years? what do we want the club to be to its' members?" I know that some of us worked hard on the idea of succession planning, to move people thru/up the BoD and bring in new people. It may be the base support and BoD-level participation just isn't there anymore. We are talking about a different generation of riders and participation means something different than it did 15-20-25 years ago.
But you have to ask the hard questions to get to the right path.