Saleh, the 49ers’ ever-passionate defensive coordinator, did not deny airing hostility right back at Coen as players separated them after Sunday’s 26-21 loss. Come Thursday night in his prime-time debut, his 5-foot-9 frame must blanket and endure the physicality of Nacua (6-2) and Adams (6-1). “All of them do such a great job in formation identification and putting players in position to gain leverage,” Saleh added. Which NFL coach, perhaps other than Detroit enforcer Dan Campbell, would have the upper hand on Saleh in a brawl? “… Saleh’s too nice usually, but it seemed like someone (Coen) struck a chord the other day.