Go to https://www.meted.ucar.edu/climate/cvc_lectures/lectures.htm (If you don't already have a UCAR account, just sign up for one for free) and watch:

the ENSO lecture by Michelle L'Heureux, and
the MJO lecture by Jon Gottschalk

Your first consulting job is to serve as a climate advisor for a reality show that will be filmed outdoors in two different remote locations, Kiribati and Brunei.  There will be two episodes in each place, one that will require it to be raining, and the other when it must not be raining.  Taking into account the characteristics and the predictability of the MJO and ENSO for each desired weather, for how far in advance for each location can you provide a forecast with a 75% confidence in your forecast?  With a 90% confidence?  Explain how you came to your decision.