The days of waiting were long and dull. The Triwizard Tournament became the main topic of conversation during that time. Many students believed Albert would become Hogwarts Champion, and he had a very good reputation at school. Apart from a handful of envious, jealous people, everyone else thought only Albert was qualified to represent Hogwarts in the Triwizard Tournament, and only he could crush Beauxbatons and Durmstrang and win the Triwizard Cup for Hogwarts.
This undoubtedly put Moody in a foul mood, because he had discovered, shortly after infiltrating Hogwarts, that Albert was far too popular. The probing during the first lesson of term sent Moody's mood plummeting even further. He had learned that Albert Anderson was a highly capable wizard with exceptionally powerful Magical Power—nothing like a Mudblood. He suddenly understood why Wormtail had been so wary of him. Albert truly was someone who could pose a major threat to the Dark Lord's plans.
Wandless Magic and Silent Spells were not techniques ordinary students could easily master. Combined with the extraordinary abilities Albert had displayed in class, it made no difference how formidable the Champions from Beauxbatons and Durmstrang might be. They simply were not on the same level. Calling it an adult beating children would not have been an exaggeration.
Could he still lose?
If they continued with the original plan and made Harry the fourth Champion, then even if he knew the contents of the tasks in advance and secretly helped Harry, it would still be difficult to ensure that Harry could get to the Championship Trophy first.
The best solution was to prevent Albert from entering the Champion Selection. As long as he could not compete, Harry would undoubtedly have a chance to claim the Championship Trophy with his help and keep the original plan moving