In a series leading up to the 2015 , NFL Media historian Elliot Harrison will rank the five best rookie seasons from the era at each major position group. Today, he reminisces about the first-year phenoms at wide receiver. TOUGHEST OMISSION: Cris Collinsworth, , 1981 (67 catches, 1,009 yards, 8 touchdowns) 5) John Jefferson, San Diego Chargers, 1978 Regular-season stats: 56 catches, 1,001...