The specific textbook that you are asking about shares the same title with other textbooks published by different companies and, for this reason, it would be best if you just go by the laws of the state where you are practicing special education as a teacher.
This being said, a typical course of action when there is disagreement is to implement the strategies and allow a period of a month to determine whether the data shows that the student is increasing in his or her skills.
When the data shows that there is no increase, you have by law to submit another referral to the CST (Child Study Team) listing down the strategies and what the data reflected after the interventions were implemented. Since a SPED child is under the protection of the government, Project Child Find cites that this data is extremely important and relevant, which is why you have to allow for the first recommendations to become implemented first, let the data speak for itself, and then recommend a second time. Then, you will have even more data to stir away from any other recommendation that resembles the original ones, and the SST team can then make a better plan of action.