Not really. Aberdeen left the reserve league as the kick off times were too close to the first team fixtures. Campbell missed almost a year of football. He couldn't play for the reserves incase he was needed for the first team. He didn't get many minutes for the first team as we had Ferguson and Shinnie. The manager also preferred to give minutes to experienced players who we knew were bad, if required. As far as I'm aware, he was also told he wasn't allowed to go out on loan.
It's harsh to say he was mismanaged but he wasn't given plenty of game time at all.
Think a good example of this was a game against Livi at home that was near the start of Cosgrove's scoring run.