Problem With DTS Package - To Delay Process

Hello All SQL Experts.

Need your advise on this. I have a DTS package which check for 2 dates and execute tasks when the date do not matched. The problem I am facing now is I could make the next step to start only if the previous step is completed. When the DTS package is executed, all steps being completed almost at the same time. See below / attached DTS package.

In the disgram, I have labelled 5 steps A ~ E, each step needs info from the finished product from previous step to produce correct result in it's own step. I couldn't schedule each step to run at different time because the DTS kicks off based on a file that comes in and each step doesn't have a fixed processing time to complete.

I have tried using On Success or On Complete and both options start the next step immediately not not wait for the job the complete or success. I guess this is because I have transferred the command to external when using command. Is there a way to control by some delay between each task?

Please advise. Thank you.

Each of the step has something like below (refreshing of excel file with macro build in):- I cannot build all macros into one file and run from the main excel.

declare @MainUpdate datetime
declare @TempUpdate datetime

select @MainUpdate=Main_Update_CET from APMEAPV_Compare
select @TempUpdate=Temp_Update_CET from APMEAPV_Compare
--select @MainUpdate, @TempUpdate

if @MainUpdate<>@TempUpdate
begin
DECLARE @commandK varchar(1000)
SET @commandK='Start Excel.exe "D:Daily_Status_Report_EDWHEDWH_Runbook_BTS.xls"'
exec master..xp_cmdshell @commandK, No_Output

END