i think we can accommodate 2 new CMs.
for instance, we could play kante as the lone holding mid, xhaka and ramsey as box2box, then ozil in front with alexis and a new ST up top. and even if there is no world class ST available id feel better with alexis and giroud as a partnership than playing with giroud as a lone striker again
in the above formation, the depth chart would be
dm: kante/coq
b2b: xhaka/ramsey, elneny/wilshere
10: ozil/santi
st: alexis/giroud, new striker/theo
we'd raise the funds for the new striker by selling ox, campbell and others. however, in that scenario i might prefer we sell theo and keep campbell and play campbell up top with a more traditional 9.