Howdy toolanm! I highly doubt if the women are allowed leadership roles but that may be spelled out in the information on that website, amishamerica.com. But then again, it depends on what settlement they're in and what the men there decide!
That's one reason why there is alot of confusion.

Someone sent me this link about a lady who researched about the Amish women and wrote an article about it. There should be a ton of information between referrences here and the amishamerica.com website. Here is her fascinating article: https://tolovehonorandvacuum.com/2017/05/stop-romanticizing-the-amish/