The truth is...
In March 2019 when some of the new systems are not in place, the Govt will simply say those IT chappies we employed failed to deliver, it is all their fault.
In December 2020 when I think the period finishes the postion will be those IT chappies we brought in have failed to deliver and ripped us off for (b/m)illions (depends on Mail or Telegraph reporting) and it is all their fault.
In 2021, it will be we are employing some Indian people under our free trade agreement whereby Indians get free movement to come and fix our IT problems, on the cheap, because this is how free trading global players work.
In 2022 replace Indians with Chinese IT people
In 2023 we the electorate realise the country is broke, all the free trade deals were signed by countries that wanted to sell us things (but not buy our things) and the rest of the world has bought whatever Britsh businesses looked like they might have had some real value in the global business world.