Jim Edmonds Files for Split Custody of Kids with Meghan King, Claims She's 'Unwilling to Co-Parent'

Jim Edmonds' legal team is looking for a more "stable" schedule to enforce joint physical custody in a new filing obtained by PEOPLE

Jim Edmonds is filing for split custody of his children with ex Meghan King.

The retired MLB player's legal team has filed a motion to modify the former couple's custody arrangement, a rep for Edmonds confirms to PEOPLE exclusively.

The filing, made in a St. Louis court on March 13 and obtained by PEOPLE, says that the motion to modify is being made for a number of reasons, one being the "impractical and unworkable" physical custody arrangement the exes — who split legal and joint custody of daughter Aspen, 6, and twin sons Hayes and Hart, 4½ — currently follow.

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Related:Meghan King Says 'No More Showing My Kids' Faces' Online: 'Enforcing Boundaries'

Under the current arrangement, each parent submits their custody schedule 30 days in advance until they come to an agreement on days for the month or until a Parent Coordinator intervenes to make a final decision, should they be unable to agree.