SQL Server 2012 :: Setting Up A Process For The Dataload

i am setting up a process for the dataload, external windows service insert a record to dbo.dataload table with a status as 'Ready'

create table dbo.dataload
(Xmlcol xml
,Loadstatus varchar(15)
,Starttime datetime
,completedtime datetime)

now i use a SQL job to check the status column, pick xml and load to appropriate tables. instead of SQL job can i use a trigger whenever there is a insert it fires sp to load data would there be any disadvantage.