They didnt want to re-engine, but the Neo success made them...seems like they have over-extended the 737 platform....
The 'new' 737-8 isnt selling well, with less than 100 orders now...
Hopefully the 787 will get sorted out, but then again, they just announced that the design cost will be over 1500 or so aircraft...
Boeing can make aircraft
Boeing needs to figure out how to make money building aircraft.