Since your If-Statements are on one line no "End if" is required. Since you are not doing anything for "else" else is also not required. This should work for you:
Sub Adjust()
Dim Pattern As Integer
Pattern = Sheets("Info").Range("R7").Value
If Pattern = 1 Then Call OneCrew
If Pattern = 2 Then Call TwoCrew
If Pattern = 3 Then Call ThreeCrew
If Pattern = 4 Then Call OneCrew
If Pattern = 5 Then Call TwoCrew
If Pattern = 6 Then Call ThreeCrew
End Sub
Alternatively, you could do this:
Sub Adjust()
Dim Pattern As Integer
Pattern = Sheets("Info").Range("R7").Value
If Pattern = 1 or Pattern = 4 Then
Call OneCrew
ElseIf Pattern = 2 or Pattern = 5 Then
Call TwoCrew
ElseIf Pattern = 3 or Pattern = 6Then
Call ThreeCrew
End If
End Sub
A Select Case would also be good for this:
Sub Adjust()
Dim Pattern As Integer
Pattern = Sheets("Info").Range("R7").Value
Select Case Pattern
Case 1, 4
Call OneCrew
Case 2, 5
Call TwoCrew
Case 3, 6
Call ThreeCrew
Case Else
'None of the above, so continue without doing anything.
End Select
End Sub
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