挖 is versatile: 挖坑 (dig a hole), 挖土 (dig earth), 挖鼻子 (pick one's nose), 挖人 (headhunt/poach talent). The figurative sense of 'poaching talent' is very common in business Chinese.
memory
The hand radical 扌 + 穴 (hole/cave) compressed — using your hand to dig a hole.