user: Question: What is the highest pick of the player from texas a&i with an overall less than 28?
Columns: ['Round', 'Pick', 'Overall', 'Name', 'Position', 'College']
Types: ['real', 'real', 'real', 'text', 'text', 'text']
Sample row: [1.0, 28.0, 28.0, 'Darrell Green', 'CB', 'Texas A&I']
SQL:

assistant: SELECT MAX("Pick") FROM "Table" WHERE "College" = 'texas a&i' AND "Overall" < 28.0;