The only way Seattle will be one of the Top 10 rushing teams is if Shane Waldron puts the Read Option back in the offensive rotation.
If you go back to the years that Seattle was one of the leading rushing teams, you'll find that Russell's yards were the reason that they were one of the league leaders. Without his yards, they were middle of the road.
For example, in 2014 Seattle led the league (#1) in rushing with 2762 yards. Russell rushed for 849 yards. Without Wilson's yards, the team would have had a total of 1913 yards, which would have placed them #11 overall.
Similarly, in 2017, Seattle was #4 overall in rushing with 2188 yards. If you subtract Russell's 539 yards, Seattle would have had a total of 1649 rushing yards... and that total would have dropped them from #4 overall to #21 overall.
And let's look at 2020 as well. Seattle was #12 overall with 1971 rushing yards. Russell rushed for 513 of those yards. Factoring out Russell's yards would have placed Seattle at #31 overall. That is VERY telling.
Russell will always have a fair number of rushing attempts because of how long he holds the ball before bailing out of the pocket but his lowest number of attempts in his career thus far is 67 in 2018. His greatest number of attempts is 118 in 2014 and 104 in 2015, which are the years that the RO was in the offensive rotation.