Former Celtic midfielder and manager Neil Lennon has now shared his verdict on the approach to set-pieces that Arsenal took against Porto on Wednesday evening. Arsenal have been incredibly effective from set-pieces this season, but failed to make the most of them against Porto. In his role as the Gunners’ set-piece coach, Nicolas Jover has been something of a secret weapon for Arsenal this season. The north London club have often taken a novel approach to attacking corners and free kicks, and the emergence of Declan Rice as a set-piece taker has certainly made Mikel Arteta’s side even more pot…