Walsall coach Neil Cutler has left the League One club to join neighbours West Bromwich Albion as goalkeeping coach.
"I class Neil as not just an associate, but a really good friend," said Walsall manager Jon Whitney.
"But sometimes opportunities come along in football that you just can't turn down, regardless of how much you're enjoying your current job. West Brom are his childhood club."
Albion have to pay a compensation fee as Cutler, who was under contract until 2019.