Michigan States offensive line refreshed with night and day difference

EAST LANSING – As Michigan State worked through its 10th practice of the spring Tuesday morning, the offensive line looked out of place. Left guard J.D. Duplain and center Nick Samac – both returning starters – swapped positions on the top group. The change is based on building depth, improving their future NFL chances and the continual search to find the best starting unit. It’s also a luxury the Spartans didn’t have at this time last year. Michigan State went through spring practice last year with only five healthy scholarship offensive linemen and converted a pair of walk-on defensive linemen.…