Rotate questions
Experts have been pressed for 100% reaction to questions. At the moment, when JA/Pearl have a lot of unanswered questions, they get new experts. I contend that existing experts leave because they are not able to answer enough questions, leaving only a few.
At the moment, it works like this: Expert A, B and C are online. A question is placed on the board and whomever locks it first answers it. But for some or other reason, it is always expert A that locks first. Expert B and C becomes frustrated and leaves the site. The problem is compounded because in chat you can lock 5 questions at a time.
My proposal: Expert A, B and C are online. First question pops up and Expert A has an exclusive lock for 30 seconds. If he does not start to answer the question within that 30 seconds, the question is placed on the board for everybody to answer. Second question goes to expert B for 30 seconds and so forth.
If you log off or become inactive, you lose your place in the line.