Ideally mate, they are expensive supplements for lads who may have a role to play coming of the bench. I mean Walcott and Delph alone are on 120 k a week each. I suppose we need to be conscious of taking on cost. But from a purely footballing point of view i get where you are coming from.
Id be a Gylfi fan boy, for me if it came down to Iwobi and Gylfi it would be Iwobi making way, im not saying Gylfis move has been massively successful but i think people are down on him and i see context in mitigation and value in him still. That said i really liked the look of Gordon centrally, not so much the last day but when he came inside from the flank, i think he will mature to move inside centrally, but perhaps you are right and will develop at this stage on the flank.
For me the overhang would be Iwobi, Bernard and Bolaise - pretty much what we are seeing now. I suspect Gylfi might be the one to leave though as i think hes the one there will be market for and has the pedigree while hes in the last couple of years of his deal.