Brook was part of England's 2022 Twenty20 World Cup winning side and has emerged as an all-format player with four 100s in his last five tests, scoring almost at a run-a-ball rate.
Hyderabad splashed 132.5 million rupees in the players' auction in December to sign the swashbuckling batter, who is likely to be part of England's 50-overs World Cup title defence in India later this year.
While big things were expected of him though, he's only managed scores of 13, three and 13 in three outings so far.
Promoted to open the innings against Punjab on Sunday, Brook was foxed by a slow knuckleball from Arshdeep Singh (24).
Former Hyderabad head coach Tom Moody (57) told the Cricinfo website Brook should be playing at number four.
"I wouldn't be batting Harry Brook at the top of the order because he's out of position (there)," the former Australia player said.
"Harry Brook has had an extraordinary time in the early parts of his career batting four and five in T20 cricket in all the different franchises that he's played in.
"So I'd be pursuing him in that position."
Former India player Sanjay Manjrekar (57) expected Brook to "crack the IPL code" soon.
"Let's hope Harry Brook gets over it," Manjrekar told Star Sports channel.
"How long? I guess, two or three more matches."
While Brook struggled Hyderabad still managed to score an eight-wicket victory, their first win of the season.
Brook's next opportunity to put some big numbers on the board comes on Friday against two-time champions Kolkata Knight Riders.
