FWIW, in thinking back to one of the early instructor renewal schools, we (rather vigorously) pointed out to DPS that the "60 days before expiration", combined with the up-to-45-day processing time, gave license holders only a 15-day window to find a class and get the paperwork submitted.
Thereafter, they agreed that could be problematic and agreed to start mailing the actual packets out several months in advance. I think it was at least a year or three later that they started phasing in the pin number thing and computerized option.
Over the years, I've had a few folks mention they needed to renew, but had not received diddly from DPS. Upon further inquiry, I learned that some of 'em had not submitted change of address form ...
