I wouldn't worry too much about Jones, word is he's dissappointed thusfar.
Taylor hasn't really gotten many TD's the last couple year's yet he's still a late first rounder. His draft spot is indicative of that performance, so based on where he's being drafted he's expected not to put up many TD's, yet his few TD's coupled with his yds still puts him right around the top 10 mark.
So, even if he doesn't get the TD's he's still putting up total points worthy of the spot you're taking him, and if he does manage to crack the end zone he could bolster right up the rankings.
Jacksonville also seems to be a team on the rise, which bodes well for their RB.