Can Manchester United, Tottenham Hotspur Save Their Seasons Through The Europa League?

Its been a horrific season in the Premier League for Manchester United and Tottenham Hotspur , but both teams are still in contention to qualify for the next years lucrative Champions League competition.
Its unlikely that United and Spurs will finish in the top five places in the league this season after indifferent domestic campaigns.
The Red Devils are 13th in the league on 38 points, 15 points off Newcastle United in fifth. Tottenham are one point behind in 14th, having lost a whopping 16 matches in the league this season. So, their chances of qualifying for the tournament the conventional way are probably out of the question.
But both teams have one last avenue to the Champions League and the 100 million pay-out that comes with qualification.
The Europa League is United and Spurs holy grail this season, a major piece of silverware and Champions League qualification that could drastically change the mood in both camps.