The obvious one everyone goes to is that the coaches are different. I think that's the easy answer.
For several years, especially 2014, this team was about huge individual plays/performances.
GONE
#80 Kenny Bell - As talented as Westercamp is, Kenny had a knack for winning the match up downfield. As fans, we would cover our eyes after seeing the back foot heave only to watch KB go full David Copperfield. He was able to get so much separation that he could adjust to a poorly thrown ball.
#15 DPE (big play) - yeah DPE is back, but he has missed most of the season. He flipped the field in multiple games on his way to becoming one of the most dynamic players in the country. He was the catalyst in winning games despite stagnant performances by his team.
#4 Randy Gregory - There is no doubt that he changed what other teams did on offense. I really wasn't a huge fan of Gregory but you can't deny that he had an impact.
#8 AA - An NFL starter as a rookie (at least for a few weeks) that needs to be considered as one of the best running backs in Nebraska history. Much like the others listed previously, AA had moments where he put the team on his back and willed them to victory.
2014 -
McNeese State - #8 won this game. This would have been one of the most embarrassing losses in school history.
Miami - #8 ran for 200+ yards and the team had 14 points off TO's to win by 10.
Northwestern - After a dismal first half, #15 got everything rolling and the rest of the team followed as they steam rolled NW.
Rutgers - #8 ran for 228 yards.
Wisconsin - Meh
Minnesota - Meh
Iowa - At one point the team was +3 in turnovers and losing. Won in OT.
USC - The team played great, not many complaints here, but it was a loss.
In my opinion, this team looks almost identical to 2014 with a few exceptions:
1. No big plays
2. They stop the run/give up huge pass plays.
There is no depth and we don't have the right players. It is also reasonable to have the injuries as part of the discussion. The injuries keep players off the field and also hampers chemistry. I don't know whether Riley is the guy or not, but he got a used car with a beautiful paint job and a full detail (9 wins). We've put 500 miles on it and it leaks, knocks, pulls to the right and dies at stop lights (Reality). We have a wreck with a salvage title and we're still trying to convince ourselves that our mint car is ready for Barrett Jackson.
We don't have the players that are currently able to play at the level of the playmakers that we lost. It may be on the roster, but it's not at that point yet. I think we are a solid recruiting class away.