I get it, your name is one of those sarcastic nicknames like a 300 pound man named Tiny, neat.
Hartwig can't be all that great if he started 16 games last year and then was cut after failed attempts to trade him. Yeah sounds like the entire NFL was chomping at the bit to get him.
Hangartner will be just fine this year as he was pretty good last year for having 2 rookie starters playing new offensive line positions. Plus Wood looks like he is being groomed to be the center for the future so lets just stand pat and see how things go. If the line starts looking like a WWII triage again, then you go after a guy like Hartwig or Terry.