Not saying you can't win the title, or at least emerge from the Great 8.  You have one of the more dangerous teams, tbh.  
The thing is that only 1 team can win it all.  & a whole lot of teams seem to be operating at a loss... unless they all think they have a very legitimate shot at beating teams the caliber of Manhattan or (no-city) Contortionists -- on the road in the playoffs -- it doesn't seem to make sense.
By the same token, a team like Manhattan spending $512k when they're actually making less than average in attendance (~ $245k last game?), might make sense for now, but is an even bigger risk.  They've got to be burning through cash & can't see them doing it more than 1 more season if they don't promote.  
& Yeah just noticed you've got some monster backups.  Guess that's where a lot of your $ is going.  Your starters are only slightly over league average.  Thought I might be overspending myself going into the season, but turns out no.  The salary of my top 5 isn't even in the same ballpark as the big spenders.  (close to $136k!?! less than the top team)