Lewis McGugan set the ball rolling in the 13th minute before Chris Brown equalised three minutes later. McGugan then scored from the penalty spot in the dying minutes of the match to hand the Hornets all three points.
Watford have only lost once this season but this was their first win in five league matches.
"I'm delighted for the three points," Zola said. "I'm also pleased with the way we played in the second half. We realised that it wasn't our best day in the first half but we've been patient, waited and went back to basics and started to use the pitch better.
"I think the quality of the football improved and also the chances came, one after the other. In the end we've been rewarded with a penalty but I think the team has done enough to win the game."
Zola said he was "very impressed" with his two-goal midfielder McGugan and added: "He's played a game for 90 minutes with quantity and quality, that's what I'm looking for.
"He's certainly doing a very good job and also he's providing those goals that I expect from him and from the [other] players, not only from the strikers."
- Sports & Recreation
- Lewis McGugan