Mark Robins praised the quality and unity of his Coventry side after the secured their first promotion in 51 years against Exeter at Wembley. Coventry thrashed Exeter 3-1 in the Sky Bet League Two play-off final.Second-half goals from Jordan Willis, Jordan Shipley and Jack Grimmer were enough to condemn Exeter, who grabbed a late consolation goal through Kyle Edwards, to a second-straight final defeat, after they were also beaten exactly a year ago by Blackpool at the same stage. "It's such a