McDonough's AFL Stats below - I couldn't find anywhere which games he was sub, or subbed off. But considering some of those games were bad losses for the team, his numbers are not horrible for a player with 9 career games.
Description Date Opponent Result K HB D M G B T HO GA I50 FF FA
2013
Round 21 17th Aug Carlton Loss 96-106 8 3 11 1 0 0 3 0 0 3 0 1
2014
Round 1 15th Mar Gold Coast Loss 69-87 4 7 11 0 0 0 3 0 0 2 1 0 0
Round 6 27th Apr Hawthorn Loss 52-118 4 2 6 3 0 0 1 0 0 0 0 0
Round 7 4th May Geelong Loss 76-81 8 5 13 2 0 0 1 0 0 1 1 0 0
Round 9 17th May Melbourne Loss 74-91 6 6 12 3 0 0 1 0 0 2 0 0 0
Round 10 24th May GWS Win 154-41 10 7 17 3 1 1 2 0 1 3 1 0
Round 11 31st May Essendon Loss 54-104 7 3 10 2 0 0 0 0 0 1 0 0
Round 12 8th Jun North Melb Loss 88-116 5 8 13 3 0 0 4 0 0 0 0 1
2015
Round 4 24th Apr Melbourne Loss 51-83 6 1 7 1 0 0 3 0 0 2 1 1