Robinson is right , we are playing with 7 players at the moment but this is down to the formation and team selection that he's picking. A 4-3-3 should enable attractive football, with loads of crosses into the box BUT
There's no width on either side , which means we lose out on 4 players who can hurt teams.
We have a makeshift right back that can't get up and down the flanks and there's no winger to pick up with. The opposition don't need to worry about defending this side of the pitch.
On the left we have no left back (due to injury) and any winger we've played in this position is right footed, which means he'll cut inside, so the opposing teams don't need to defend any side of the pitch.
Until we have wingbacks and wingers on both sides (on their natural foot) we'll have an issue, unless we change our current formation and put the ball on the deck and play through teams.
With Turnbull, Ohara, Campbell, Long, Lang, Watt we have plenty of decent footballers.
Given our lack of wingbacks for now the better option would be to drop the 4-3-3 as is and play more of a diamond .