Using tsql greater than sign in CASE Expression

Question

(case [dbo].[YearsInService]([DateEngaged],getdate())
   when (0) then (0) 
   when (1) then (4) 
   when (2) then (8)
    when (3) then (12)
     when (4) then (32)         


        

Answer 1

case [dbo].[YearsInService]([DateEngaged],getdate())
   when (0) then (0) 
   when (1) then (4) 
   when (2) then (8)
    when (3) then (12)
     when (4) then (32) 
     when (5) then (40) 
     when (6) then (48) 
     when (7) then (56) 
     when (8) then (104) 
     when (9) then (117) 
     when IIF(case [dbo].[YearsInService]([DateEngaged],getdate()) >= 10 
           ,[dbo].[YearsInService]([DateEngaged],getdate())
           ,10) 
        then (150) 
     else (-1) end

This equates all the cases above 10 to the value of the function.