As a fan, we can individually get excited about this player or that player its part of the fun of being a fan. However, our perception as to just how good (or bad) we think a player can be is based on the limited amount of knowledge we are given or that we observe and how we process that information. At the end of the day, there are some pretty smart guys on the Packers coaching staff that make decisions on players, it is their full time job. Their decisions are made not only on their vast knowledge of football, but also a much more complete picture of the player. Coaches are at practice, talk directly to a player, watch practice and game film, talk to teammates, etc. I'm not sure about everyone here, but besides watching games and reading what fans/media write, that is about all the information I am privy to.
As a Packer fan, is it fun to think Janis is possibly a great up and coming WR in the NFL, playing for the Green Bay Packers? You bet it is. But if I have to take off my fan glasses and try and interpret what the coaches are saying through their actions and small sound bites, my excitement about Janis at this point is only over his value as a special teams player, with the bonus of potentially having the physical attributes of a decent WR. His play on ST's last year probably secured him another year as a Packer, hard to debate that. However, besides some skewed stats on 2 great hail mary throws by Rodgers, nothing else the coaches or Janis said or did last season, leads me to believe that the Packer coaches opinions of Janis as a WR has changed much.
2016 might be the year for Janis to prove himself at WR, but he is still going to have to do that in all the areas that the coaching staff evaluates, not just in fan votes.