Which of the triple constraints do you think is the most important for UMUC Haircuts’ IT implementation?

First, review the “triple constraints” of IT Project Management as covered in this week’s reading “What is Project Management?” Note that there are more than 3 constraints discussed in the article. The illustration above from the article shows the author’s interpretation of the “triple constraints.”
Group C: Please address the following 3 questions:
Which of the triple constraints do you think is the most important for UMUC Haircuts’ IT implementation? 
Explain briefly why you selected that constraint.
Discuss how you would ensure that this aspect was well addressed to maximize Myra’s chance for success with her IT implementation.
Group C’s main responses are due by Thursday. Groups A, B and D’s replies to classmates’ postings are due by Sunday night. (Remember “more than 2” substantive reply postings are required for an “A.”) 
My Response: