I posted a team that I bumped the stats on. It's called HAWKS 98. No, I didn't bump up ALL the stats on EVERY player, but I bumped up both sides of the ball, and it worked within the first 5 seasons. In any case, if it isn't working, you can edit the roster to add a few more 99 players. This one should work pretty well, and yes, it goes very fast.
Same process as earlier years:
1) RB to Share from the main menu.
2) Download Community Files
3) Y to find gamertag (I'm Sashamorning
)
4) HAWKS 98
5) Back out to Main Menu
6) RB to Customize
7) Manage Files
8) Load and Delete Files
9) RB to Roster
10) HAWKS98 (duh)
11) Yes, current progress will be lost
12) Back to Main Menu, LB to play
13) Connected Franchise
14) Create Online (I've found before that it works faster, but you won't have any other people)
15) Enter League Name
16) Under Roster, change to Custom Roster
17)
to begin... import a whole bunch of players
18) Coach => Create Coach => Motivator
19) Seahawks
20) Accept the Coach
21) Skill Level => All-Madden (more points)
22) Toward the bottom => Fill Roster, Re-Sign Players, Progress Players, Sign Offseason Free Agents => all set to ON
23) Back at the top => Start Career
24) Start Online League => Start Season
25)
to Simulate to game 1.
26) Down to Advance Week => down to Sim 10 Years
Off to the races. It should pop by Season 2020. I just tested it again, and won my first 4 Super Bowls and got it by 2019. If it doesn't work for you, try creating another league.