The Jets COULD upgrade the O-line but its far from urgent. The O-line was not that bad this year. When your QB is awful it makes it tough for the Oline to run block (the defense stacks the box), yet the Jets running game was pretty solid.
Its also tough on the Oline to pass block when the WR's lack talent and never get open leaving the QB to hold on to the ball forever.
I'm always ok with drafting talented OL and DL, because you can never have enough talent at those positions, but I'm not reaching to take an OL if there is a significantly better player available at WR, LB, RB, WR. Unfortunately, there aren't any great RBs, WR's or QBs in this draft, so by default we will likely end up with OL/LB help with the 9th pick.