Only one NFL team started the same five players on the offensive interior line in every game during the 2015 season – the Minnesota Vikings. But that didn't prevent the Vikings from seeking to improve their offensive line during free agency.
Minnesota signed guard Alex Boone, a four-year starter for the San Francisco 49ers, to a four-year, $26.8 million contract. They have two former starters who missed the 2015 season with injuries -- center John Sullivan and right tackle Phil Loadholt – ready to return. And last week, the Vikings signed former Huffman High School and Alabama Crimson Tide star Andre Smith to a one-year contract that could be worth up to $4.