I don't think so, Smalling's positioning had been good last season. The main reason why this season his positioning looked poor because he needs to cover all our back four job. He's doing everything by himself and it's not good when one man needs to do 4 men's job. Another example is when against Chelsea 1-1, he was covering Darmian place is the main reason he was caught off out of position. Even if Blind gets one better than Smalling, let's just say Thiago Silva and he will still need to cover blind's error, blind's physical ability and other defenders job so basically Thiago Silva is still going to do a 4 men's job.
Yesterday Blind had a poor first half, so many errors and he was one of the worst list player on the pitch. Smalling was covering him all the time at first half and I thought Smalling had a solid first half. Second half was the opposite, Smalling made mistakes and Blind did his job good but to be fair second half all the players already lost their spirit and seems like already game over and our players were all over the place like they didn't know what they need to do (headless chicken) so it's not like I expected Liverpool attackers to have many reason to go all out bombering our defense in second half.