Slagging off of Sigurdsson is way over the top imo.
Get we paid too much but he's nowhere near as poor as some of the carry on I'm reading here.
He's obviously a very good footballer but we're clearly not getting the best out of him.
For me, I don't think him and Tosun can work together as the front two as they both take up the same positions and neither of them run beyond. I think they're both too old to change their game massively so it's either drop Tosun for somebody more mobile like DCL or Richarlison or drop Sig back into the midfield proper.
As much as I love Gana I'd like to see Sig play in that role when we're against 'weaker' teams as Gana gets the ball 10 yards outside of the opposition box quite a lot, and we'd much prefer Sig to be in that scenario.