How do they pick who plays who in test match series ?

[Big Ewis]

Never knew...anyone know ?
Like how do they pick "okay this November we're doin NZ England, Wales...etc.." and how come the English get so many ? man they've got Fiji, Australia, SA, NZ...they get a chance to play all the big 3...

 

[TRF_Olyy]

and how come the English get so many ? man they've got Fiji, Australia, SA, NZ...they get a chance to play all the big 3...

Because we're great!

Or, more accurately, it's all about money.