For Nottingham Forest, a few minutes before kick-off and before the curtain went up on another season, a new protagonist emerged from the tunnel. Oliver Glasner, Forest’s fifth head coach in less than 12 months, surveyed the scene from the home technical area. But the start of the new dawn, this Glasner’s first competitive game in the job, did not go to plan, Anton Stach sneaking a whipped free-kick in at Matz Sels’s near post with a couple of minutes of normal time remaining. At least Forest c…