Hull assistant manager Frank Barlow has left the club as part of a reshuffle of the backroom staff following their disappointing start to the season. Manager Phil Parkinson took over in the summer but after 13 games the Tigers are bottom of the Championship table, with just two wins and nine goals.
Barlow's place as assistant manager goes to Colin Murphy, who did the same job alongside former boss Peter Taylor.
The club said more changes to the senior coaching staff are likely soon.