IT was seconds in - rather than seconds out - as Wids beat third-placed Park.
The visitors came from behind for a second successive league victory which showed the importance of the second string at Heath Road.
Liam Wilde and Ben Hazzard, both promoted from the reserve ranks, looked at home at senior level while young lock Mark Loughnane fitted in well on his full debut.
Full-back Phil Glover was injured in the warm-up with Gareth Riley, returning from long-term injury himself, coming in.
But Widnes otherwise had a more settled-looking side and are turning their season around.
The pack have improved significantly since the return of forwards coach Derek Sutton.
But on their first attack, on 21 minutes, the home side took the lead with a Mark Taylor try, which was converted by Ben Barton.
Widnes continued to probe but had to settle for a 39th-minute penalty by skipper Stu Hussey.
After the restart, Rab Higgins was binned for dissent and a mass brawl erupted after a tackle from impressive flanker Johannes Lamprecht.
In between, Barton increased Winnington's lead with a 15-metre penalty.
But Widnes redoubled their efforts with a 51st-minute Paul Borg try.
Only a last-ditch tackle stopped the impressive Mark Whit-field.
But Hussey kicked Widnes into a 71st-minute lead with a 20-metre penalty and kept the pressure on.
Widnes take a rest from league action this Saturday but have a tough trip to Warrington in the Lancashire Cup on Sunday (ko 2.15pm).
Eagle 10 Widnes 2nd 43: Andy Rigby's second-half try was the pick as he outpaced Eagle's Gettins to go under the posts.
Touchdowns from Leedham and Ledsom (2) had seen Wids 15-3 up at half-time.
Improved handling brought further tries from Leedam, Gill and Dowd. Conversions came from Evans (3) and Riley. Wids 2nds entertain Wallasey this Saturday (ko 2.30pm). Widnes U15 15 Fleetwood U15 5: After Fleetwood had responded to tries from Fleming and Barton with one of their own midway through the second half, Fleming added his second from a 12-man move starting in the Wids' own 22.