Getty (Photo by Harry How/Getty Images) The San Francisco 49ers have a major concern regarding their pass rush after the team totaled 20 sacks last season. However, with Nick Bosa and Mykel Williams returning from injury, along with the drafting of Romello Height, the Niners are hoping for a better group. Nonetheless, many speculate the Niners will go the veteran free-agent route. Names such as Joey Bosa and Jadeveon Clowney have emerged, but no move yet from the 49ers’ end on any of these