No. Rothwell has proven his credibility for years. You can say that A and Z have more technical expertise....NOT credibility.That's an absolutely hysterical statement from someone who thinks that the anonymous representative of Rossi's "secret" anonymous customer has credibility. You obviously don't know the meaning of the word "credible".
Definition: believable
Synonyms: aboveboard, colorable, conceivable, conclusive, creditable, dependable, determinative, honest, honest to God, imaginable, likely, plausible, possible, probable, probably, rational, reasonable, reliable, satisfactory, satisfying, seeming, sincere, solid, sound, straight, supposable, tenable, thinkable, trustworthy, trusty, up front, valid
Nothing there about "depth of knowledge". Methinks it is YOU who fail to understand the defintion of "credible".
Here's a clue.....YOU....are NOT credible.