The strategic solution for schools is to invest in better universal provision and training backed by Sendco expertise. But this demands fundamental culture shifts in so many schools.
There is good practice out there, though.

All the problems I face stem from supply side problems-not just money but ITT, professional status for support staff, availability of advice. As a result, more and more professional time is spent gatekeeping, and dealing with complaints about gatekeeping, which exacerbates the supply side issues