Good lord, bench pressing at 5x5 three times a week will have you overtrained and burnt out within the month! Personally I recommend the Texas Method over this trash any day if you're looking for a 5x5, you're going to kill yourself doing this.
Different folks, different strokes...It's very a convenient looking routine. I've used 5 x10 M/W/F and upped 1 1/4 to 2 1/2 every Monday for months at a time, no supplements. I won't be using that routine anymore but it worked for me when I needed it. If he can't add weight reliably THEN he needs to change.
here's the Texas Method (copy and pasted from this forum) since I didn't know what it was
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The Texas Model works in 3 sessions:
High Volume / High Intensity Session
Low Volume / Low Intensity Session
Low Volume / High Intensity Session
In summary, this is how it is outlined:
Monday
High Volume / High Intensity Session
Squats 5 sets of 5 reps across
Bench Press 5 sets of 5 reps across
JS Rows / Power Cleans 5 sets of 5 reps across
Wednesday
Low Volume / Low Intensity Session
Squats 2 sets of 5 reps @ 80% of Monday
Press 3 sets of 5 reps
Deadlift 1 set of 5 reps
Friday
Low Volume / High Intensity Session (PR = Personal Record Day)
Squats 1 set of 5 new PR
Bench Press 1 set of 5 new PR
Pull-ups 3 sets to failure