STRENGTHS - Schwartzstein has average size with some limited growth potential to add for the position at the next level. He shows above average overall athletic ability and body control in his play. He is a competitive player, who shows consistent effort to finish his blocks, and is most effective on traps and down blocks in the running game. He is a solid in-line blocker who holds his ground. In passing situations, Schwarzstein is adequate considering he is a small interior lineman. He gets up and out of his stance quickly and plays with good pad level, and shows a strong punch when he uses his hands. He isn't the most nimble player but can get to the second level and use his body to shield defenders away from the ball carrier. He appears to be a tough, smart player who hasn't missed much time during his two years as the starting center for Stanford.
WEAKNESSES - Schwartzstein is an adequate blocker in the passing game but not a player who can be relied on to stay on powerful interior defenders for long periods as he lacks good playing strength. He doesn't exhibit great body balance and agility when he gets physically locked on to a defender. Out in space he tends to miss moving targets and while he holds his ground at the line of scrimmage, he doesn't gain any leverage and lacks the power to move anyone off the ball. While he can initially deliver a jolt to a defensive lineman, there isn't much behind it and he loses ground. Schwarzstein doesn't have great functional strength and appears to have short arms as well. He doesn't have much foot quickness and can get beat to points on the field out in space.
SUMMARY - Sam Scwartzstein is a polished center prospect with average size and some ability to get bigger for the position in the NFL. He is a solid athlete with good instincts in how to use position and leverage to his gain. He is a competitive football player who goes whistle to whistle and plays with toughness. However, he lacks good playing strength and doesn't create much push in short yardage situations. He is at his best in tandem situations where he can play a two man game with the guard next to him. He can get to the second level and get his body in the way, but he doesn't always make contact and can miss on moving targets. He tends to get overwhelmed when playing through contact and the lack of power really shows when he is playing bigger, more powerful interior linemen. While he has been very productive over the past two years at Stanford, he doesn't possess great foot quickness or superior functional strength and simply struggles against power. Overall, he will have a hard time against the bigger bodies in the NFL, but warrants seventh-round or priority free agent consideration due to growth potential, smarts and competes.