Plunkett succeeded Eddie Brennan as Laois manager when Brennan resigned in November 2020, beginning a second spell in charge, with Laois proposing him in December 2020 and confirming the appointment on 1 February 2021.https://www.skysports.com/gaa/hurling/news/30554/12154736/laois-re-appoint-seamus-cheddar-plunkett-as-senior-hurling-manager He announced his departure in June 2022.
