Louie Barry has beem deployed as a centre forward alongside Tanto. Yes, he drifts into the wide areas to open up space for his teammates, just as Tanto does, but his position in the XI has been that of one of two central strikers.
As for where Touray has played, it's quite simple. When we have three CBs on the pitch Touray has played as a left wing back with either MSH or Knoyle as his equivalent on the right. That means he gets higher up the pitch than a classic left back, which is what he plays as when we utilise two CBs in the old-fashioned back four.
It's nothing to do with 'IMHO', the evidence is there to see across the 54 games we've played this season.