They do need to get their hotpotch fleet sorted just how much longer can they flog those anceint 300 and 320/757 a/c for? the engineering costs alone must be crippling not to mention the crewing issue
Well except you can cross fleet on the A320/A321 and not sure if Monarch do, but the A330 has a very similar flight deck. So that leaves the B757 for the long routes that are beyond the A321 and the A300 for high capcity. It's not that much of a hotch-potch and as you are well aware, Monarch have in house and world class engineering in MAEL.