It obviously is a players market now, and owners are breaking the bank to sign them. Time will only tell if the spending spree is worth the investment. To me, some of the owners that is spending all the cash on roster now is bound to bankrupt during the season. It is not like you are going to dominate the league/conference with your high salary level 10. Most owners think as long as they win, the balance will be fine. While there will be 4/16 teams with playoff home games that may break even at season end with standard stadium. I wonder how many owners actually thought about finances and laid out the yearly earning/expenses.
It is a tough market out there now and you are competing with 1000+ teams for that high level player, but is that player really that worth it spending 100K salary and 125K in bonus? Times that by 20-30 players and well, you know the rest. I think if you actually gor a late start on the game, you are better off signing low level players and invest on your stadium upgrades and be ready for season 5.
I am not blasting any owners here, I just looked at the current market and saw some owners that really doesn't care about the team future. All they are looking at is now and try to hide the fact that the team will not even make it to end of this season.

Well, I say good luck and I will look you up at the unemployed line in few seasons.