The 38-year-old former Watford boss has been out of work since leaving Vicarage Road last November.
The Republic of Ireland Under-21 international played under new U's boss Aidy Boothroyd at Vicarage Road.
Two penalties apiece from fly-halves Glen Jackson and Ceiron Thomas made it 6-6 after 25 minutes at Vicarage Road.
Assistant manager Wilkins will look after the team at Vicarage Road on Saturday.
The proposal is part of a wider plan to expand Watford Hospital, next to Vicarage Road and build 600 homes.
Sarries earned a bonus point as they scored four tries in a 36-0 win over French side Bayonne at Vicarage Road.
Bath went down 20-9 at Vicarage Road and are now 13 points off fourth spot, although they do have games in hand.
The Vicarage Road side are now six points behind Premiership leaders Leicester but Irish, without a win since 31 October, are down to seventh.
The keeper was brought to Vicarage Road by former Hornets boss Brendan Rodgers, who had worked with him while the pair were at Chelsea.
West Ham' s play visibly relaxed as news filtered around Vicarage Road that Wigan had scored twice against Reading early in the first half.
On Thursday Mackay appointed three former Watford colleagues to his backroom staff, with David Kerslake, Richard Collinge and Joe McBride all quitting Vicarage Road.
The Sarries victory puts them top of Pool Four, two points clear of French side Biarritz, who they meet next at Vicarage Road in January.
Wasps are now up to third in the table after this victory in a pulsating encounter in front of over 13, 000 people at Vicarage Road.
But, after limited opportunities, with just 56 appearances at Vicarage Road, Ellington was loaned out to Derby followed by a loan move across Europe to Greece.
The Rams held on until the final whistle for their first win at Vicarage Road since 2009 and their first away win in seven league games.
Ipswich remain the only club in the English leagues to be without a win, while Watford are now unbeaten in six matches away from Vicarage Road.
He believes their 30-3 win over Sarries in the EDF semi-final at Millennium Stadium on Saturday 22 March augurs well for what lies ahead at Vicarage Road.
Boothroyd, who took the Hornets into the Premier League for a season in 2006, has been out of work since leaving Vicarage Road last November by mutual consent.
But Saracens, playing in front of a sold-out Vicarage Road for the first time, came back into the game helped by a raft of penalties given against the visitors.
Having lost heavily against Leicester in their last outing, Bath failed to build any momentum in the early stages at Vicarage Road, making basic errors and handing the initiative to their hosts.
Saracens, back at Vicarage Road after "home" matches at Twickenham and Wembley, made an inauspicious start to the match with Alasdair Strokosch stealing their ball at the line-out before Lawson darted through to score.
It was a dramatic end to a brave venture as Saracens decided to leave the cosy environs of Vicarage Road and head a few miles south to Wembley Stadium, the home of English football.
Promoted Leeds have been outclassed this season, notably in shipping a half century of points at home to London Irish, but they were never less than committed at Vicarage Road and Saracens struggled to break them down.
But they contested an open and entertaining game in the April sunshine at Vicarage Road, with Heidar Helguson crashing an inviting chance into the side netting inside the opening minute after a teasing cross from the ever-involved Taarabt.
It eventually paid dividends in the final minute when Diggin went over from close range in the right-hand corner to ensure that despite losing their unbeaten record, they would at least leave Vicarage Road with a bonus point.
The Citroen van was taken away from a property in Knapp Road, around a mile (1.6km) from the vicarage, at about 23:30 GMT on Tuesday.
应用推荐