The San Francisco 49ers, by most accounts, have the best offensive line in the NFC West and one of the best in the NFL.

They've needed a swing tackle and could always use veteran depth.

Adam Snyder's return to the team Monday on a two-year contact could help in that regard. Snyder left the 49ers for the Arizona Cardinals last offseason, but the Cardinals released him after selecting two guards in the 2013 draft.

Snyder has value as a backup to every position on the line, in my view, and that is how the 49ers would use him if Snyder were to earn a roster spot. Starting center Jonathan Goodwin is entering the final year of a deal paying him $3.7 million in base salary. Daniel Kilgore and Joe Looney are young linemen with promise, but both remain unproven in game situations.

Snyder was miscast as a starter for the 49ers and Cardinals; it's not his fault Arizona gave him a $5 million signing bonus as part of a five-year, $17 million deal. Returning to the 49ers makes sense. The coaching staff knows Snyder well, and Snyder knows the staff. Snyder can proceed in the absence of unreasonable expectations. The 49ers can proceed knowing they have another option on the line, should they need one.