With chances for Mo Eisa, Daniel Harvie and Bradley Johnson in the first-half, Dons could have been high and dry before Jevani Brown opened the scoring on 37 minutes from the penalty spot.
More chances came and went in the second period before Brown doubled the lead on 67 minutes to leave Dons teetering back on the brink of the League One drop zone, out of the bottom four on goal difference.
Here’s how we rated the players.
5. Tennai Watson - 7
Linked up well with Leko again, especially in the first-half when Dons were on top Photo: Jane Russell
6. Paris Maghoma - 6
Had a decent opening hour, but lost his way twice in quick succession, one in the Exeter penalty area, and then in the centre circle which led to the Grecians' second goal Photo: Jane Russell
7. Bradley Johnson - 7
Had two good chances in the first-half which could have put Dons in front Photo: Jane Russell
8. Top Don: Dawson Devoy - 7.5
Dons' most creative outlet, made some really clever interplay in the first-half especially, and sparked the move for their best chance of the second-half too but Maghoma Photo: Jane Russell