Does maintaining a frozen service like this[1] really require a team with a leader? I get that someone need to know the service and do maintenance when necessar

Does maintaining a frozen service like this[1] really require a team with a leader? I get that someone need to know the service and do maintenance when necessary, but surely that wouldn't be much more than a 20% position or something? At least if some ground work is done to make the now simplified[2] service simpler to run. [1] Almost the simplest possible services (sans the scale I guess) you can imagine except simple static webpages [2] The original product included some sort of traffic counter, etc. IIRC