Seeing that trees are long-lived perennial plants, one must be patient. Seeing that these particular trees were recently planted, I would avoid any aggressive pruning as the foliage is the photosynthetic engine of your tree. Just because the foliage is yellow doesn't mean that particular branch is dead.
Keep your pruning shears in the garage, give your tree some TLC, and allow your tree and its stressed roots acclimate to its new environment.