I agree with you that the BYU defense has to improve. Not sure that has to mean boring offense.
Just seems to me that the BYU basketball DNA calls for uptempo. Nearly all BYU's best teams were uptempo. Stan Watts was a fan. Cosic's, Ainge's and Jimmer's teams ran the fast break.
I didn't enjoy last year. Not a fan of better defense by slow deliberate offense.