Yeah, honestly, would be happy with Maguire, Lindelof, Smalling and Bailly for next season, with Tuanzebe as an addition. It's a good CB line-up. FB, I honestly don't think we should bother with - Shaw/Williams/AwB/Dalot - again, happy with that for the season (considering the circumstances). Need to start giving Dalot chances though.
Desperately need midfielders though. Grealish will be way overpriced, if van de Beek is available, we should be all over that deal. We desperately need creativity in our midfield (outside the first team). Fred can provide muscle at the base of the midfield, while Pereira is just another body on the field, but we desperately lack creativity. Sancho (or whoever) means our backup for our front three would be Greenwood, James and Ighalo (and Lingard) - not at all bad.
But on the topic of Smalling leaving, seems rumours indicate we are in for for Gabriel Magalhaes (or however you spell the name). So, dunno.