Without knowing what is you are currently doing, this is going to be a stab in the dark. However you may grab an idea from something...
If your strikers are putting in a lot of shots, but the on-target stat is low, try slowing the tempo a notch or two
If your strikers are being closed down, try increasing tempo a notch or two
If your strikers are running with the ball and being tackled off it, reduce the run with ball setting
If your strikers are not getting fed enough from midfield, increase the number of players playuing through balls, or increase some from rarely to mixed or mixed to often
If less than 15-20% of crosses are finding their target, try reducing the crossing rate for the wingers so they cut inside more... or increase the wingers through ball rating
Put your strikers on a different training schedule which includes high finishing, attack, tactics and ball control
If you strikers are going wide too often, reduce their crossing rate to rarely so they stay in front of the goals more
Cheers