Nolan has joined Orient as player-manager on a two-and-a-half-year contract. The 33-year-old midfielder had been without a club since the summer of 2015 when he left West Ham.
Carroll, who played with Nolan at West Ham and Newcastle United, has wished him the best of luck at the League Two outfit.
All the best to this chimp on his new role at The O's. pic.twitter.com/WdTXHtCwsT— Andy Carroll (@AndyTCarroll) January 21, 2016
Orient are 11th in the League Two table at the moment with 37 points from 26 matches. The O’s are just three points behind Wycombe Wanderers, who are currently seventh in the standings and occupy the final playoff spot.
Nolan’s first game in charge of Orient will be on Saturday afternoon when they take on Wycombe away from home at Adams Park.
Meanwhile, West Ham currently find themselves sixth in the Premier League table with 35 points from 22 matches, just four points behind fourth-placed Tottenham Hotspur.