The Carolina Panthers made seven draft picks and a host of trades in the NFL draft last week. They continued to shore up the roster in an attempt to defend the NFC South title they earned last season. Not all the picks were aces, though, and there's a bit of a range (C to A+) in the grades the Panthers are being given by league insiders and analysts. There were good picks, weird picks, and interesting picks, and here's what those were. Best pick: Kansas State C Sam Hecht After moving around the draft board, the Panthers ended up with the 144th pick early in the fifth round. They used it on Kansas State center Sam Hecht. He was considered by a lot of draft analysts to be no worse than the second-best center in this class. He was also widely considered a top-100 prospect, with some even having him near the top-75 range. That's incredible value, and he has a real shot at starting as a fifth-round pick and being the center of the future. Getting that after moving around and in the fifth round is impeccable.…