you guys answer his question wrongly. what barry mean how someone can be lv 17 in 2 week, while in normal time it require more time than 2 week. (barry manager level is 3 now)
yes. taking over lower lever team feature was removed long time ago.
so best possibility this lv 17 is coming back from his hibernate. this happend to me too. the started date change to coming back date not actual started date. but you can see the achievment there is 2 or 3 years manager already if you are see his profile from pc.