It’s hard to argue with the fact the San Francisco 49ers have had a strong offseason.

After already strengthening the roster with veterans like Dee Ford and Kwon Alexander via trade and free agency, the team continued to build its core with a strong draft that netted top prospects in defensive end Nick Bosa and wide receiver Deebo Samuel.

However, even with the overall improvement, there are still some issues that linger and question marks that need to be resolved. Here are four concerns that remain about the 49ers after the NFL draft:

Interior Offensive Line

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San Francisco allowed 125 quarterback hits in 2018, which was second most in the NFL. While many of the issues with pass blocking had to do with struggles at guard and center, the 49ers didn’t address the interior in the draft.

It’s possible that a healthy Weston Richburg will help solve some of the issues. The prized free agent center battled a painful leg injury for much of last year. Beyond that, the Niners have to hope Laken Tomlinson, Mike Person, or Joshua Garnett can step up and improve the overall play at guard.