It's a really simple change with Smyth becoming the defensive point of our midfield triangle instead of Browne being the more attacking point (which he'll return to for our remaining games).
As for Smith or Konate, they're simply not showing enough behind the scenes if they're not getting into the squad. Unless we want to go back to the rubbish that anyone not playing must have fallen out with the manager, we may just need to accept that they're not what we need right now.