Absolutely. When my dad had bypass surgery because his left main artery was very occluded they wanted to use a mammary artery, but that was too full of stuff too, so they used a leg vein. Years later one of his carotid arteries was very occluded and they had to tie it off completely.
The body can generate new artery growth, so as some block up, if the process is slow, there are new smaller tributaries that help carry the blood to the area. From what I understand some individuals are better at growing new tributaries than others. I guess it’s generic.
I don’t know a lot about the research happening around this, they want to understand why some people grow tributaries and others don’t. The research is also intertwined with cutting off arterial growth that feeds cancer cells.