Assigning roles.

I'm in produce, and I have options in the zebra to do throwaways and do my GC orders. I can also do subads on the computer. I transferred to my current store 3 years ago, and I don't remember who assigned me the roles. i think they came with me. come present day we now have produce leads. my lead, the entire time she's been with us even before becoming the lead, has had no roles. she's been pestering our store secretary to get the roles. the secretary says it's our team leads job to assign rolls while he says it's the secretary's. we're getting nowhere. is there a resource on the computer or something I can use to prove who's job this is?