Jordy Nelson, judged by performance and now by contract, is unquestionably the No. 1 wide receiver for the Green Bay Packers. Where that leaves Randall Cobb bears watching. After closely observing Nelson and Cobb during the first two weeks of training camp, it's become clearer than ever that GM Ted Thompson, coach Mike McCarthy and VP Russ Ball prioritized correctly at wide receiver. Nelson has established himself as a great player. His day-in, day-out superlative play in practice this summer only reaffirmed his primacy in Green Bay. In the wake of Nelson's four-year, $39.8 million extension on July 26, the inevitable line of inquiry was when would the Packers act to extend Cobb, thereby preventing him from becoming an unrestricted free agent in March? I loved what Cobb had to say into the cameras and tape recorders that surrounded him the next day. "I don't believe I've done enough," said Cobb. "I think my job is to come out here every day, do what I'm supposed to do, work hard and hopefully my time will come. "I feel I have a lot to prove." Cobb's right. He also needs to play. Last summer, Cobb injured a biceps a week into camp and was limited to two snaps in the four exhibition games. Then his regular season was shortened to 30.8% playing time (365 snaps) because of the fractured right fibula that knocked him out of 10½ games. Remember, Cobb played only 290 snaps as a rookie and 647 in 2012. Those totals reflect wide-receiver plays only; he also has 72 snaps from running back in three seasons. When a wide receiver performs as well as Cobb did two years ago, it seems to be expected that his career will continue upward.