[welzel]

I have worked on very large e-Commerce sites and it seems there are 2 common issues:

#1 a lot of teams are understaffed, overworked an not aligned, improving search is simply not a priority (at the same times, a lot of people are bored out of their mind, because of inefficient allocation of capacities). And of course, usable analytics data on search does not exist as it is hard to collect...

#2 search might be actually ok, but the quality of the catalog data is a nightmare - and the catalog is maintenance by a tiny team that overworked and underpaid. To add injury to insult, there is also no clear accountability established and 5 departments and a couple of vendors play the "not my problem" game. Sometimes 10-30% of the catalog is renewed every year and people gave up a long time ago to report problems.