Ó Sé returns for Kerryas Clare opt for two teenage newcomers
Ó Sé missed the final victory over Galway because of suspension.
His recall sees Eoin Brosnan move to left half-forward, with Liam Hassett excluded.
Both 19-year-olds, Coughlan from the Kilmurry/Ibrickane club, and O'Meara from Ennis's Éire Óg, have been named in the Clare full-forward line in what promises to be a tough baptism of fire for the two new kids on the block.
Another newcomer is Kevin Dilleen from St Joseph's/Doora-Barefield, who is handed the number four shirt.
Seasoned campaigners Philip Smith and Michael O'Shea were ruled out because of injuries.
Regular wing-back Smith has a damaged knee, while corner-forward O'Shea has a hamstring problem.
Offaly have named the same team which won Divison Two of the NFL for Sunday's opening game in the Leinster championship against Westmeath.
A broken thumb has ruled Diarmuid Marsden out of the Armagh side for Sunday's Ulster championship clash with Monaghan in Clones.
Manager Joe Kernan will also have to plan without the services of John McEntee, whose groin injury has not cleared up sufficiently for him to start.
Donegal goalkeeper Tony Blake is considering his inter-county career following a knee operation yesterday.
Blake, who has been a stalwart for the Donegal side over the past seven years, has had problems with his left knee his kicking leg throughout spring.
He had lost his regular place to young Four Masters star Paul Durcan.
OFFALY (SF v Westmeath): S. Kelly; S. Sullivan, C. Evans, S. Brady; B. Mooney, C. Daly, K. Slattery; C. McManus, J. Grennan; P. Kellaghan, R. Malone, A. McNamee; C. Quinn, N. Coughlan, N. McNamee.
KERRY (SF v Clare): D. Murphy; T. O'Sullivan, M. McCarthy, A. O'Mahony; T. O'Sé, E. Fitzmaurice, S. Moynihan; D. O'Sé, W. Kirby; P. Galvin, D. O'Sullivan, E. Brosnan; C. Cooper, J. Crowley, M. F. Russell.
CLARE (SF v Kerry): D. O'Brien; P. Gallagher, C. Whelan, K. Dilleen; N. Griffen, B. Considine, R. Stafford; David Russell, D. O'Sullivan; G. Quinlan, Denis Russell, O. O'Dwyer; C. Mullen, E. Coughlan, S. O'Meara.
