From Dutch 'rooster' (gridiron/cooking grate) — the parallel lines of a grill resembled the ruled lines on a list of names.
A list or plan showing turns of duty or a list of members of a team.
From Dutch 'rooster' (a list, a grid/gridiron), from 'roosten' (to roast). A 'rooster' was originally a gridiron — the parallel lines on a cooking grate looked like the ruled lines on a list. The connection is visual: both a gridiron and a roster have parallel horizontal lines. Key
A 'roster' is a barbecue grill. Dutch 'rooster' meant a gridiron (cooking grate) because of the parallel lines. Someone noticed that a list of names on a page looks like the parallel bars of a grill, and the cooking word became the office word. Your team roster is, etymologically, a gridiron with names instead of sausages