To cement play-off spot - they need two wins and one draw from the next 3 games.
Two of those games are against Us and Villa.
They can't afford to lose.
I think they will defend first and try to counter attack.
The team that they could over-take is Millwall.
They play Boro 5th and Villa 4th - so they will probably hope that they don't will both matches.
Brentford ( same points as Derby ) play Hull and & Barnsley - so they need to try and keep their noses in front.
For us it's win or nothing, derby would be happy with a point perhaps.