Hoey takes over the right half back position from Colm Forde. The two McMahon's return after injury, with Sean replacing John Reddan at centre-back, and Diarmuid in at midfield, along with Ollie Baker who was unavailable for the game against Dublin.
Regular midfielder Colin Lynch is now at centre-forward in place of Conor Plunkett, who did not have a good outing against Dublin.
Both full back Brian Lohan and utility forward Barry Murphy were not considered because of injury and Gerry Quinn takes over the left half back spot in preference to Pat Vaughan, while Baker's inclusion means the demotion of Daithi O'Connell.
Former Allstar Peter Barry has been recalled to the Kilkenny team for the must-win clash with Laois at Nowlan Park. The 30 year old has only returned to training following an extended break. U-21 player of the year Mark Phelan is in at corner-back. He is joined by five members of the defence that won the All-Ireland.
The big absentee is DJ Carey, who is in America.
Laois have made just one change from the side that went under to Waterford, Paul Cuddy coming in for Frank Keenan at centre-back.
High-flying Offaly have made two changes on their team to meet pointless Limerick at Birr. Michael Cordial comes in at midfield for Nigel Mannion, while Dylan Hayden is preferred to Ritchie McRedmond at right corner forward.
Tipperary have also made two changes on their team to play Wexford. Shane Maher and Brian O'Meara are both injured and are re-placed by Lar Corbett and Tomas Costelloe. One positional change sees John Carroll move from defence to attack.
Antrim will be heartened by the return of Kieran Kelly, Johnny Campbell and Ciaran Connolly for their game with Cork at Casement Park. All three missed the defeat by Offaly because of injury.
Kelly comes back at full back, Campbell in the left corner of defence and Connolly at right corner forward. They replace Ger Cunningham, Ainle O'Caireallain and Sean Kelly respectively.
Dublin have made three changes on their team to meet Waterford at Parnell Park on Saturday from the side that came close to upsetting Clare in Ennis a fortnight ago.
Derek O'Reilly and dual star Conal Keaney have recovered from injury and will take over the left corner back and right half forward positions. Keith Wilson, out of action since the tailend on last season, makes his first appearance in the competition at right half back.
Positional changes see Dave Curtin moving to centre forward and Shane Martin taking over the full forward duties.
(SH v Wexford): B. Cummins; T. Costelloe, J. Devane, M. Phelan; E. Corcoran, D. Kennedy, D. Fitzgerald; E. Enright, P. Kelly; L. Corbett, J. Carroll, B. Dunne; S. Butler, J. O'Grady, E. Kelly.
(SH v Kilkenny): G. Galvin; L. Mahon, P. Cuddy, C. Cuddy; J. Fitzpatrick, P. Cuddy, M. McEvoy; J. Young, J. Walsh; C. Coonan, D. Cuddy, S. Dwyer; T. Fitzgerald, L. Tynan, D. Culliton.
(SH v Waterford): B. McLoughlin; A. de Paor, S. Perkins, D. O'Reilly; K. Wilson, K. Ryan, S. Hiney; D. Sweeney, R. Fallon; C. Keaney, D. Curtin, L. Ryan; T. Moore, S. Martin, K. Flynn.
(SH v Cork): D. Quinn; M. McCambridge, K. Kelly, J. Campbell; B. Herron, K. McKeegan, C. Herron; J. Connolly, M. Scullion; M. Herron, N. Reynolds, L. Watson; C. Connolly, A. Delargy, B. McFall.
(SH v Galway): D. Fitzgerald; B. Quinn, B. O'Connell, G. O'Grady; D. Hoey, S. McMahon, G. Quinn; O. Baker, D. McMahon; A. Markham, C. Lynch, T. Griffen; N. Gilligan, F. Lohan, D. Forde.
(SH v Limerick): B. Mullins; B. Teehan, G. Oakley, D. Franks; N. Claffey, J. Brady, C. Cassidy; B. Murphy, M. Cordial; B. Carroll, R. Hanniffy, N. Coughlan; D. Hayden, G. Hanniffy, D. Murray.
(SH) v Laois: J. McGarry, M. Phelan, N. Hickey, M. Kavanagh, J. Ryall, P. Barry, J.J. Delaney, D. Lyng, P. Mullally, J. Hoyne, H. Shefflin, T. Walsh, C. Phelan, M. Comerford, A. Fogarty.