In his bid to secure the point needed, Ferguson is likely to hand Wayne Rooney a first start since the 2-2 draw against Bolton in September.
"If a player is out for a certain period there is no point rushing it, " said Ferguson.
And perhaps Ferguson deliberately made a point by including the likes of Tomasz Kuszczak, Chris Smalling, Rafael and Federico Macheda.
Ferguson appeared to be making the point that his authority would not be questioned by leaving the striker to stew on the bench, although the United boss might also have based his decision on an out-of-form Rooney having scored just once for his side so far this season.
And by the time Ronaldo left, Ferguson had turned Wayne Rooney into the focal point of the side.
"To be the most successful team is fantastic, " said Ferguson, who insisted they will get the point they need.
Anton Ferdinand's injury-time own-goal gave United a point, but it was Wiley's display that incurred Ferguson's wrath.
Chelsea need at least a point against Newcastle to retain any hopes of pipping Sir Alex Ferguson's side to the Premier League title.
Manchester United manager Sir Alex Ferguson's side now have a two-point cushion over Arsenal and Manchester City as well as a game in hand.
BBC: Arsene Wenger blames Man Utd pitch for Arsenal mistakes
And with strikers Wayne Rooney (hamstring) and Dimitar Berbatov (knee) now also doubts for the match against Aston Villa, Ferguson's squad is stretched to near breaking point.
With a weakened squad, and expected to suffer the league's statutory six-point penalty for any club going into administration, the loss of Obst, Ferguson and now Millard - all three of whom started in Saturday's season opener against local rivals Castleford at the Millennium Stadium in Cardiff - are a huge blow to Wakefield coach John Kear.
Ferguson hinted that he will rotate his squad as United seek to win and move a point above leaders Chelsea, who take on Aston Villa in the semifinals of the FA Cup on Saturday.
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