From the article itself, "The UK's tax collection agency is putting forth a proposal that all employers send employee paychecks to the government, after which the government would deduct what it deems as the appropriate tax and pay the employees by bank transfer."
Yeah, you read that right. If you live and work in the UK, and if such a plan were implemented, your boss would send Her Majesty's Revenue and Customs (the Brit equivalent of the IRS) your paycheck, and they would take out the taxes they feel you should pay, and forward you the rest -- rather than the current system, where the employer withholds and sends in tax.
Now, knowing government efficiency is pretty much the same all over the world -- practically nonexistent -- what are the odds that all will go smoothly? If there's a mistake, how long will it take to get a refund? Who determines what amount is reasonable? Is there appropriate security and transparency?
This is an utterly preposterous proposal. The fact that it even saw the light of day is disturbing. The person who came up with it ought to be publicly flogged.
Yet, somewhere in the backed-up plumbing of the IRS and the shit-impacted bowels of Congress, someone is thinking, "Holy shit I wish I'd thought of that!"
Form each, according to their ability...