come from behind and get ahead of others; the late comers surpass the early starters (/the old-timers)
? 陛下用群臣如積薪耳，后來者居上。(《史記·汲鄭列傳》3109) Your Majesty appoints ministers in the way men stack firewood:the latest to arrive are piled on top.
后來居上
successors surpass their predecessors;The latecomer comes out first;catch up from behind
～，超過前3隊leapfrogging three teams
后來居上hòu lái jū shànɡ
比喻后來的人進(jìn)步大，超過了前人。the late comers surpass the old-timers, to overtake sb. from behind, catch up from behind