1) There is no substitute for high pulls, especially if you can't do any olympic lift variation.
2) The chin-ups and rows are not movements than lend themselves well to the layers: with the chins it turns into an ugly lower body kicking to get up with very little in the way of back activation.
To be able to successfully use layers with chin-ups you must be aqble to do a sets of 3-5 VERY strict pull-ups with 45lbs attached to your waist (I`m talking chest-to-bar with no lower body cheat and holding the peak for 1 second).
The rows in general are just not very good for 1-3 reps of very heavy work. The arms tend to take over (or you start to use the lower back or to change the angle of the torso).
Really, if you cannot do any explosive pulling (high pulls, power clean, power snatch, muscle snatch) this might not be the optimal program for you.