With the boom period of free agency settled and the NFL draft in the books , the Denver Broncos have added talent across the board. Some of the big question marks on Denver's roster, like running back, tight end, and inside linebacker, received some notable upgrades primarily through the draft with selections at all three positions. However, no roster is perfect, and the Broncos are no exception, as they still have areas of weakness that need to be addressed. That's what we're talking about today. Let's break down three remaining roster needs post-draft, including one you might not think of first when it comes to holes. Offensive Tackle Denver Broncos left tackle Garett Bolles (72) and right tackle Mike McGlinchey (69) | Derek Regensburger / IMAGO / ZUMA Press Wire Yes, the Broncos have one of the best offensive tackle duos in the NFL in Garett Bolles and Mike McGlinchey, but they don’t have a viable option who can step in and eventually replace them.…