Couldn't agree more! I, personally, hired some devs which are good in a specific tech stack, but struggle to learn the stack which the company was using , keepi

Couldn't agree more! I, personally, hired some devs which are good in a specific tech stack, but struggle to learn the stack which the company was using , keeping demands too much from themselves and I trying to teach them, doing pair programmings and they fired themselves! So, after this two cases, I tried to filter even more and had good new hires.