[49yearsold]

Correct - I don't write code 100% of my time but I do code reviews on daily basis, involved in architecture, design of new feature; implementing a side project using swift, xcode,java for personal finance app. But still I feel so clueless when I see these questions on leetcode or similar sites.

[bradlys]

It's a different skill set. Even as an IC, this requires hundreds of hours of practice to get to an adequate level.

[mav3rick]

Do you not value the fundamental tenets of CS ? Is it beneath you to learn them ?

[H8crilA]

Keep in mind that even if you value them you'll eventually forget them given enough time in the ranks of the managers.

[mav3rick]

I won't. That's like saying Jeff Dean has forgotten Big O or how hash maps work.