It was mission accomplished for Eddie Patterson as Glentoran secured their first three points of the season.
Goals from David Howland and David Scullion wrapped up the win for the Glens – Andy McGrory replied for the home side.
It was a combative display from the east Belfast side who remain unbeaten after two games.
“We tried to play football; I felt we were the team that wanted to play it in the right way on a quality surface,” said Patterson.
“The main thing for us was to come down to Lurgan and getting the three points. It keeps us at the right end of the table.”
The Glens were two up before the hour mark with Howland and the dangerous Scullion hitting the target.
Glenavon got a goal back when Gary Hamilton’s corner came off the crossbar and went in off McGrory’s shoulder – although how much the winger knew about it remains up for debate.
Although they almost conceded a late third when Jordan Hughes, just on as a substitute, raced through and beat Coleman, but his shot came off the bar and was gathered up in the end by the goalkeeper.
“It was very much a game of two halves – we didn’t close the ball down in the first half but we played much better in the second,” said Hamilton.
“We put a lot of balls into the box and on another day we would have got a result.
“Glentoran play with an extra man in midfield so they are always going to have more of the ball than us, but they didn’t really get behind us and create many chances.”
Of the goals conceded Hamilton added, “They came from two poor mistakes. Coleman’s held his hands up for the first one and we didn’t mark up for the second.
“We had a good spell at the end of the game but I’m disappointed not to have got something from the game.”