Rice has explained why his no-nonsense approach was needed and praised the Scot for the clarity of his message since being reappointed to succeed Manuel Pellegrini, as per the Daily Mail.
He said: "He's old school but that is what you need. We needed that. We were getting too sloppy. Straight away, he set the record straight and said that we have not been running hard enough, working hard enough.
"We've let our standards drop. He gets the best out of the players. If you're not playing well he will tell you straight."
Moyes got off to a flying start on New Year's Day as the Hammers ran out 4-0 winners over Bournemouth, and he will be hoping the new manager bounce continues in the FA Cup against Gillingham on Sunday.