Heh, I was expecting people to point out that the major flaw was no speed boost, not that it didn't have an IAS >_>. Then again, this is the PvE forum and I mainly PvP... But yeah, like other people have posted, the point of the build is to simulate a better version of IAS through all of the activation time attacks.
The only 2 other strategies that I can figure out is to use R/D for Expertise, A/D for Critical Strikes, or simply D/any and use [skill=text]Zealous Vow[/skill]. However, R/D and A/D will lack Protector's Strike and Distracting Strike which will cause the build to lose offense albiet at the gain of having an IAS (Lightning Reflexes for R/D and Crit Agility for A/D) and not needing to use an Elite. The Zealous Vow version also gains an IAS (Heart of Fury), but requires an elite and a cover enchantment, which will limit the amount of attack skills it can use.
EDIT: What is with me and forgetting to mention things?... Anyway, if you desperately need an IAS, just use an
Essence of Celerity XD. Unless you're strictly trying to save up on money, it shouldn't be much of a problem to buy a few of these every once in a while. It even helps with the recharges, allowing more attack spamming.