The ratings for Madden 2017 have been released for every team and to no surprise, overall the Jacksonville Jaguars aren't that great, but they did have some interesting grades. You can view the full team grades at the EA Sports website here, which should already be sorted by the Jaguars.
The highest graded Jaguars player is Allen Robinson with an 88 overall, followed by Malik Jackson with an 87 overall. Jaguars quarterback Blake Bortles is an 82 overall, putting him as the 16th overall quarterback, behind guys like Derek Carr, Kirk Cousins and Matthew stafford, but even with the likes of Alex Smith and Tyrod Taylor.
As for the rookies, Jalen Ramsey is the highest with an 82 overall while Myles Jack is a 76 overall and listed as ROLB. Yannick Ngakoue is a 69 overall (nice) and newly signed left tackle Kelvin Beachum is an 82 overall.
I haven't played Madden in years, so I can't say how good or bad these ratings are comparatively to the rest of the game.