If you do not have a lot of time and you are interested in the bare minimum of developing full body strength, opt for a 2x per week Upper Push/Pull Lower Push/Pull program.

Example:

Exercise Reps and Sets RiR Week 1 Week 2 Week 3 Week 4
A) RDL 6-12 x 3 1-2
B) DB BSS 6-12 x 3 1-2
C1) Pull-ups 6-12 x 3 1-2
C2) DB Incline Press 6-12 x 3 1-2