Common Sense: Working memory imbalances don't interfere with working memory in every circumstance, they only gum up the works, like molasses in January.
If you don't inject time *and thus context* into your ADHD assessments, you will miss the boat more often than not. No this isn't particle physics, but Heisenberg did get it right in 1927: Time matters
Balanced neurotransmitters require both initial measurement and then precursor additions to rebuild insufficient neurotransmitter supplies for each of the 4 ADHD neurotransmitters.
ADHD Treatment Targets Need Clarification - Reality Changes - If you wonder why you can't get the meds right. If you wonder about diagnosis and the question: "Is it hyperactive, inattentive or combined?" - 'Context' becomes exceedingly important.