The WTS has a problem keeping elders/finding brothers to appoint as elders.
In one congregation the BOE were trying to find out if they could appoint a 25 year old as an elder. The PO called a few congregations asking the elders if they knew of anyone appointed at that age, or if there was any correspondence from WTS on the matter.
Another congregation has about 90 publishers and 4 elders. Two of the elders are in their 80s and have serious health problems. The other two elders are in their 50s and stretched thin; one elder is the PO, WT Conductor, Accounts...the other elder is the TMS Ov, Secretary, Literature, and Magazines. One of the 80 year old elders is Service Ov, but gets most of his field service time witnessing to the in-house aids that care for him through the week. The only MS in the congregation is in his 70s and has been a MS for about 20 years. Some MTS grads were sent there a few years ago. These guys were elders in the 25-35 year old range. One of the grads got married and moved away, the other grad got tired and moved back home.
Another congregation has four elders. Elder1 is in his 60s and suffers from depression. Elder2 is in his 50s regularly works 60 hr/weeks and his wife attends half the meetings. Elder3 is in his 40's and is a Super-Elder...substitute CO, city overseer, longtime pioneer. Elder4 is in his 40s and has the reasoning skills of a lemming (this elder couldn't understand why one publisher who was raped had emotional problems). This congregation has had 6 MS for the last 2 years, but none of them can qualify for elder, and it isn't for lack of trying. The MS want to be elders, but they are worse than Elder4 in their lack of reasoning and thinking skills.
Another congregation has 140+ publishers and 6 elders. Over the last decade they have talked to the branch about splitting the congregation, but they don't have enough elders and "strong" publishers. The MS become elders, the more experienced elders move away, the new elders get tired of dealing with so many publishers and eventually tire out or get removed. The PO is a brother that was reinstated, pioneered, appointed MS, then elder all within the last 10 years.
It isn't all bad from the WTS perspective. One congregation in the circuit has 9 elders, 7 MS, and 10 pioneers. Attending this congregation is like being in some weird, nightmarish state. The majority of the publishers talk about JW stuff all the time even away from the KH. On Saturdays they go out in early morning service, meet back at 9 a.m. and again at 1 p.m.; and regularly have large groups meet for Sunday service! I keep waiting for this congregation to hit it's peak and everyone suffer burnout, but they have kept this pace for years.
In the last 12 months I personally know of 4 elders (in a circuit of 1200) that have quit.