No. Get a rb that can get the job done. They don't have to be in the elite class of running back, just solid and effective. If you added someone who was good enough now and then tried to look for an upgrade in 2022 or 2023 you're still ok. As much as I like Harris and Etienne, I would be ok with Stevenson, Gainwell, Kylin Hill, Trey Sermon and so on and so on. There are backs that will go even later or maybe even undrafted that could be decent in the right situation. I love Gerrid Doaks as a late sleeper... thumper runs down hill and grinds out yards. Larry Roundtree from Missouri is another late round prospect that could outshine players drafted earlier. Just like with so many things in the NFL, there's always more than one path to success. Teams can win with one of those top two or three backs, but teams can win one of the 8th or 9th backs too. It's not like you have to take this one approach or you're doomed to fail.